功能菌剂的混合发酵研究

随着化工行业的发展，大量有毒有害难降解有机物随工业废水的排放进入环境，这些物质能够在环境中长期存在、积累和扩散，通过食物链对动植物的生存及人类的健康造成不良影响。本文以苯酚、对氯硝基苯、氯苯和十六烷为模拟污染物，以前期研制的功能菌剂为对象，经过紫外线线诱变筛选出优于出发菌株的功能菌，对诱变后功能菌的理化性能进行了研究，对菌种进行了鉴定，在此基础上，就其相互之间的微生态关系进行研究，为混合发酵提供理论基础，并就其最佳发酵条件及发酵参数进行了研究，最后对发酵产品的性能进行了检测。目前，国内外有关功能菌剂的研究还存在多方面的不足，主要包括：①由于多菌种混合发酵过程较为复杂，各菌之间存在复杂的相互作用，影响因素较多，关于菌种之间的相互关系研究得很少，环境功能菌剂的发酵方法大多采用单独发酵后混合的方式。单独发酵对原材料、设备和能源的利用率较低，对于多菌种制剂发酵，在设备、能源和原材料的方面造成的浪费更大，将会大幅增加菌剂的生产成本，影响多菌种功能菌剂的发展；②功能菌剂生产过程的质量控制方面研究得较少；③功能菌剂产品的稳定性、抗冲击性能研究得较少，对环境微生物制剂的研究主要集中在菌种选育和培养条件优化方面。 通过本论文研究，得到以下主要结论。 （1）在紫外线诱变处理中，用紫外线对发生一定程度退化的出发菌株进行诱变处理后，六株具有高效降解性能的菌株被筛选出来，诱变筛选出的菌株形态和ERIC-PCR指纹图谱与出发菌株相比发生了明显改变；而且诱变后的菌株对目标难降解底物的降解能力均得到改善，其中，FPN、FCB、F14、FEm对目标底物的降解率提高了20%以上；诱变后菌株经过7次连续传代接种后，对目标难降解底物的降解率无显著变化，具有一定的遗传稳定性。并对诱变后的功能菌进行了初步的鉴定，这6株菌都分别是芽孢杆菌。 （2）对诱变后的功能菌相互之间的微生态关系进行了研究，通过抑菌实验、生长量以及基质消耗量的比较，确定它们之间的生长关系是无害共栖关系，可以进行混合发酵。 （3）对该功能菌剂进行发酵培养条件研究，结果表明发酵培养基的最佳成分（g/L）：葡萄糖 31.0g/L、玉米粉10.0g/L、磷酸氢二钾1.0g/L、硫酸铵1.1g/L、硫酸镁0.55g/L。通过研究不同的培养条件对菌体生长和降解性能的影响，确定了最佳培养条件：培养基初始pH7.5；最适温度32℃；培养基装液量125mL（250 mL三角瓶），以及培养时间对降解性能的影响，培养20 h的产物对降解最为有利。通过研究添加不同目标污染物对菌体生长和降解性能的影响，确定了添加目标污染物的最佳量以及最佳时间：苯酚投加量：1.125 g/L，对氯硝基苯投加量：0.1 g/L；最佳投加时间为发酵培养开始后4 h。 （4）以摇瓶分批发酵最优条件为基础，对FPN、F10、FCB、FNa、F14 和 FEm进行了摇瓶分批发酵试验。以摇瓶分批发酵试验数据为依据，对功能菌剂分批发酵动力学进行了研究，建立了菌体生长和基质消耗的动力学模型，拟合模型能较好的反映功能菌剂分批发酵过程。 （5）功能菌剂和活性污泥协同作用，可以提高系统的生物降解能力，功能菌剂投加量为2%，新鲜活性污泥3500 mg/L，降解24 h条件下，功能菌剂和活性污泥的协同作用对COD的去除率和对照组相比，最多的提高了36.8%。功能菌剂和活性污泥协同作用以及活性污泥的单独作用，其生物降解过程均符合一级反应动力学过程，功能菌剂和活性污泥协同作用的生物降解动力学方程为：，相关系数97%。采用SBR运行方式，引入功能菌剂的SBR系统明显能够改善和提高生物降解的效率。与仅有活性污泥的系统相比，系统对COD的平均去除率可以提高27.1%，同时，系统的耐负荷冲击以及耐毒害冲击的性能比仅有活性污泥的SBR系统强，特别是负荷冲击对引入功能菌剂的SBR系统影响很小。仅有活性污泥的SBR系统经过负荷冲击和毒害冲击之后，不能恢复到冲击之前的水平，而且系统有效作用时间的周期比引入功能菌剂的SBR系统相比大大缩短，而引入功能菌剂的SBR系统处理效果较为稳定，恢复能力很强。 Along with the development of industries, many recalcitrant organic chemicals have been discharged into natural environments together with wastewaters and can exist in waters, soil and sediments for a long time without degradation. These haz-ardous substances, their byporducts and metabolizabilities can be highly toxic, mu-tagenic and carcinogenic, thereby threatening animals, plants and human health through food chain. Consequently the removal of these compounds is of significant interest in the area of wastewater treatment. In this dissertation, the phenol, hydro-quinone, chlorobenzene and hexadecane treated as the model pollutants, the func-tional microorganism agent was used as the starting strains, they treated with ultra-violet light, and then the mutant strains with high degradation ability were screened out and identified primarily, the relationship between these stains were studied, the medium composition and fermentation conditions were optimized, the degradation ability of the fermented production was tested. The literature survey indicates that the study of the microorganism agent is far from complete and more information is re-quired on following problems. 1, Because of the complexity of relationship in mixed fermentation and the complicated factors, the study is hardly to process.2, There is a lack of information on the quality control of the producing process .3, And there is a lack of information on the stability about the microorganism agent. In this dissertation, the main results of the present study could be summarized as follows: (1)The degenerate starting strains were treated with the ultraviolet light, and six mutant strains with high biodegradation ability were screened out by using the me-dium with selective pressure of model pollutants. The mutant strains had great changes in colonialmorphology and ERIC-PCR fingerprinting. And the mutant strains got obvious advantages over the starting strains in degradation ability and over 20% improvement of removal rates was achieved for FPN、FCB、F14 and FEm. The de-gradation ability of the mutant strains was stable after seven generations. After that, the mutant strains were primarily identified as bacillus respectively. (2) The relationship between these mutant strains was studied. By the compari-son of antibiosis effect, biomass and consumption of substrate, the relationships were neutralism and they could be mixed fermented. (3) The optimized cultivation conditions were as follows: glucose 31.0 g/L, corn power 10 g/L, K2HPO4 1.0 g/L, (NH4)2SO4 1.1 g/L, MgSO4 0.55 g/L, initial pH7.5, temperature 32℃, working volume 125 mL/250 mL, and cultivation time 20h (con-sidering the time effect on degradation ability), adding pollutants phenol (1.125 g/L) and hydroquinone (0.1 g/L) into the broth at 4 h after cultivation. (4) Based on the above optimum condition, the batch fermentation was per-formed with strains FPN, F10, FCB, FNa, F14 and FEm in shake flask. The batch fermentation kinetics was studied based on the experimental data. Two kinetic models were constructed which could reflect the regularity of growth and substrate consump-tion in the process of batch fermentation. (5) The co-operation of functional microorganism agent and activated sludge could raise biodegradation of system by adding some microorganism agent and 3500 mg/L fresh activated sludge. Bioaugumentation by the addition of high effective deg-radation culture enhanced the treatment effect of SBR system and the COD removal rate was increased by 20%-36.8%. Its biodegradation matched first-order dynamical reaction equation, and the reaction equation was ln0.2327.391ct=−+. The micro-organism agent had the effect of optimization to activated sludge micro-ecosystem. The SBR system adding 2% microorganism agent, the average COD removal rate of that was increased by 27.1% and stronger anti-shock ability to load and toxicant were achieved (compared with SBR system just adding activated sludge). Especially the load-shock has barely effect to the SBR system adding microorganism agent. After the load and toxicant shock, the SBR system just adding activated sludge couldn’t come back to original level and the activated sludge micro-ecosystem was frustrated. The applying of microorganism agent increased biological activity and system’s re-sistance ability to load shock and toxicant shock.

Etyczny profil "Familiaris consortio"

Artykuł koncentruje się na etycznym aspekcie „Familiaris Consortio”, zakładając równocześnie bogatą problematykę pastoralną. Pytanie etyczne, które pojawiało się wraz z ukazaniem się tego dokumentu wiązało się z nastrojami wahania i oczekiwania w wyniku ujawnienia się silnej opozycji wobec nauki zawartej w encyklice „Humanae Vitae” Pawła VI. Adhortacja nie podejmuje bezpośredniej polemiki z przeciwnikami nauki Kościoła, lecz przedstawia pozytywny wykład całościowej nauki na temat powołania małżeństwa i rodziny. Powołanie stanowi w tym dokumencie podstawową kategorię teologiczno-moralną, wyjaśniającą i uzasadniającą istotne wymogi moralne małżeństwa i rodziny i przenoszącą życie ludzkie na poziom świętości. Powołanie ma swe źródło w Boskim planie zbawienia i objawia się wraz z dokonaniem dzieła zbawienia w Jezusie Chrystusie. Tajemnica powołania uobecnia się w dziejach ludzkości jako ukryta a zarazem objawiona w misterium Chrystusa i Kościoła. Powołanie rzuca istotne światło na stworzenie mężczyzny i kobiety czyli stworzenie rodziny opartej na fundamencie małżeństwa. Odtąd prawda antropologiczna posiada wymiar sakramentalny. Powołanie przenikając wewnętrznie rzeczywistość stworzoną, umieszcza w samej głębi bytu „nie dające się stłumić wezwanie: rodzino, stań się tym, czym jesteś” (FC 17). Bóg Stwórca i Odkupiciel powierzył człowiekowi – mężczyźnie i kobiecie- zadanie budowania rodziny mocą tej samej Miłości, przez którą istnieje świat i człowiek, oraz tej samej Miłości, którą Objawił Syn Boży na Krzyżu, ustanawiając nowy porządek stworzenia. Odtąd prawda życia ludzkiego i prawda miłości musi być odczytywana wyłącznie w świetle tajemnicy Paschalnej. To wezwanie płynące z głębi sakramentu odzywa się mocą łaski w sercu małżeństwa, w sercu męża i żony, którzy są wezwani do miłowania się tą samą Miłością, która płynie z Misterium Krzyża. Ta koncepcja powołania, wypływająca z sakramentalnego charakteru chrześcijańskiego istnienia stanowi klucz do rozstrzygania szczegółowych pytań mogących się pojawić w kontekście życia małżeńskiego. Wizja przedstawiona przez „Familiaris Consortio” jest jednorodna i charyzmatyczna, jest teologiczna i antropologiczna zarazem, dotyczy bowiem człowieka jako człowieka, a nie tylko „pewnych jednostek” ludzkich uwikłanych w sidła małżeńskie. W „Familiaris Consortio” jest jedna norma małżeńska i jedna norma rodzicielska: to jest zawsze ta sama Miłość, która z Serca Boga poprzez sakrament przenika do serca małżonków. Dlatego miłość małżeńska jest miłością rodzicielską, czyli odpowiedzialną za świętość tajemnicy zrodzenia, to jest równocześnie za świętość Boga – Stwórcy i za godność człowieka powoływanego na świat. Zarówno miłość małżeńska jak miłość rodzicielska, nie mogą istnieć bez czystości małżeńskiej. Tu leży prawdopodobnie główna przyczyna powodująca opór wobec nauki „Humanae Vitae”. „Familiaris Consortio” odrzuca wszelką manipulację antykoncepcyjna, podkreślając sprzeczność postawy antykoncepcyjnej nie tylko z prawem Bożym, ale i z istotą człowieczeństwa. Zawiera się to w twierdzeniu, które głosi, że pomiędzy prawidłowym życiem małżeńskim a antykoncepcją zachodzi nie tylko różnica moralna, lecz także antropologiczna (FC 32). Jest to surowy osąd tej praktyki, ale prawdziwy: ci, którzy stosują antykoncepcję, staczają się na poziom poniżej-ludzki.

Grant Keyes Chapman, riding on an ostrich, 1928

Grant Keyes Chapman, son of Grant Chapman and grandson of Frank M. Chapman, riding on an ostrich, 1928.

Grant Chapman, July, 1934

Grant Chapman, son of Frank M. Chapman, Covina, California, July, 1934.

Scott Misener Steamships Co. Ltd. Records, 1965, 1967, 1972-1977, 1987, n.d.

Ontario Editorial Bureau (O.E.B.)

Bowslaugh Family fonds, 1860-1861, 1868, 1876-1877, 1880-1882, 1886-1890, 1892-1893, 1895, 1898-1899, n.d.

Edward W. Bowslaugh (1843-1923) was the son of Jacob and Anna (Beamer) Bowslaugh. Edward Bowslaugh married Mary Southward, and the couple had six children, Edgar Morley, Edward Freeman, twins Alfred Malcolm and Alice Mary, Annie Olivia, John Jacob and Mabel Florence. Edward W. Bowslaugh was a farmer, contractor and owner of the Grimsby Planing Mills in Grimsby, Ont. and Bowslaugh’s Planing Mill in Kingsville, Ont. The mills manufactured door and sash trim and other wood related products. Some customers contracted the firm to provide wood products for cottages being built at Grimsby Park, the Methodist camp ground. Some time before 1885 Edward Bowslaugh and his family moved to Kingsville, Ont. to open up a new planing mill and door and sash manufactory. He later sold the Grimsby Planing Mills to Daniel Marsh. The diaries and account books include many names of workers as well as friends and family members residing in the Grimsby and Kingsville areas. James M. Bowslaugh (1841-1882) was the son of Jacob and Anna (Beamer) Bowslaugh. James married first Anna Catharine Merritt and after her death in 1875 he married Mary Gee in 1877. James and Anna had three children, Eliza, James Herbert, George Hiram, all died very young. James and Mary Gee had one son, Charles Leopold Kenneth Frederich Bowslaugh, b. 1881. James Bowslaugh was a farmer and lumberman, much like his younger brother Edward. James’ early diaries often note the activities of himself and his brother Edward. Both Edward and James were heavily involved in the Methodist church, teaching or leading Sunday school and attending prayer meetings. Alfred M. Bowslaugh b. 1873 was the son of Edward W. Bowslaugh and his wife Mary Southward. The school notebook is from his days as a student in Kingsville, Ont.

Dianna Hostetter funeral invitation, 1861

The invitation is a request of Jacob Hostetter to his friends and acquaintances to attend the funeral of his wife, Dianna on Tuesday, October 29, 1861. Dianna, also known as Dinah, was the second daughter of Joseph and Mary Heslop Van Every. She was born in 1831 and married Jacob Hostetter of Grantham Township. Jacob died a year later, leaving two children, Joseph Blain Hostetter (1860-1896) and Laura Diana Hostetter (1861-1933). Jacob was the son of Capt. Herman Hostetter of Ten Mile Creek who had died from wounds received at the Battle of Queenston Heights. Jacob and Dianna Hostetter are buried in the Warner Cemetery, Niagara Falls, Ont.

Edward Mirynech fonds, 1913-1914, 1946, 1952-1957, 1959-1960, 1965-1982, n.d.

Edward Mirynech joined the faculty at Brock University in 1964 as assistant professor of Geology. Edward Mirynech, the son of John and Katherine Mirynech, grew up in St. Catharines, attended Connaught Public School and received his formal education at the University of Toronto. Dr. Mirynech played several critical roles in the early development of the University. In addition to teaching, Dr. Mirynech was also the acting director of the athletics department, a coach for many of the early rowing, hockey and basketball teams and served the University as marshall for the sod turning ceremony for the new DeCew campus in 1965. Dr. Mirynech was instrumental in the founding of the physical education, geography and geological sciences programs. He served as acting chairman in 1968 when the department of geological sciences enrolled its first students. Part of the unique teaching program was the annual field trips to locations such as the Belleville area, extended summer teaching programs held in Trinidad-Tobago and the following year in Iceland. In 1972, the first graduation ceremony ever to be held in the Arctic, at Pond Inlet, NWT, made national news. Three geology students, on a study trip to the Arctic, received their degrees during a special ceremony. Dr. Mirynech was among the faculty team in Pond Inlet, NWT, representing Brock University. Dr. Mirynech retired from teaching in 1985, and passed away in 2004.

Gilbert McMicken document, n.d.

Gilbert McMicken emigrated to Upper Canada in 1832 and settled in Chippawa. In 1835 he was married to Ann Theresa Duff. In 1837 the family moved to Queenston where he was directly involved in the Kingston-Queenston trade endeavours begun by Robert Hamilton. He had a variety of interests, including a partnership with James Hamilton, son of Robert Hamilton. He was also a collector of customs in Queenston and operated the Niagara Suspension Bridge Bank for a time. He entered politics and represented Niagara as well as becoming mayor of Clifton, now part of Niagara Falls, Ont., in 1856. McMicken went on to have an illustrious career, serving as land agent and leader of Canada’s first undercover agency. McMicken moved to Manitoba and was active in business and politics. He died in Winnipeg in 1891. Source: Dictionary of Canadian Biography – Gilbert McMicken website (March 22, 2010)

Horton Family collection, 1912, 1919, 1924, n.d.

Dr. William Hamilton Merritt, Jr. was born in 1865 and died in 1924. He was the son of Jedidiah Prendergast Merritt and Emily Prescott, grandson of William Hamilton Merritt. In 1892 he was married to Maud Claudman Hudson of Memphis, Tennessee and had a daughter and a son. During World War I he commanded the 14th battery at Flanders and after becoming ill served as part of the 9th Canadian Field Ambulance, 3rd Canadian Division, serving at a military hospital in Orpington, Kent, England and in 1917 at a military hospital in France. Dr. Merritt served as alderman and mayor for the city of St. Catharines, Ont. He was also a vice-president of the Imperial Bank of Canada, and served on the board of the Niagara Falls Suspension Bridge. A memorial service was held in St. Thomas Church, St. Catharines, Ont. on April 24, 1924.

Scholfield-Galbraith family fonds, 1865-1924

The Scholfield and Galbraith families of Dunnville, Ont. were related by marriage. Thomas Jefferson Galbraith (1842-1921) worked as a collector of canal tolls at Port Maitland, a landing waiter and searcher and an acting preventive officer in Customs. He was married to Jane Ann [Jennie] Montieth and they had five children, Margaret, Minnie Montieth, Genevieve Marion, Edith Stuart and Thomas Percy Galbraith. Genevieve Marion Galbraith was married to Harry E. Scholfield, son of Frederick Scholfield (d.1908) and Georginna Galer (d. 1888), a dry goods merchant in Dunnville. Some extent records belong to a William Scholfield who operated a mill in Dunnville. Included are records related to land lease, mortgage and bargain and sale agreements between Scholfield and various individuals, including Richard Kirkpatrick, William Kohler, Alvin Drake, Robert Ban[u]d, Henry Beckett, Sr., Samuel Waltho, Nehemiah Niece.

Daniel Shannon fonds, 1816-1822

Lt. Daniel Shannon fl. 1777-1822, was the only son of Susan Drake, granddaughter of Rev. Thomas Drake, eldest brother of Sir Francis Drake, and Captain Daniel Shannon of the Royal Navy. He married Elizabeth Garvey, daughter of Alexander Garvey and Catharine Borden of New Jersey. Lt. Shannon was a Regular in the British Army and on February 12, 1777 he joined the Royal Standard, 5th New Jersey Volunteers. After being arrested and sentenced to hang for spying he was pardoned through the efforts of his mother Susan Drake Shannon who pleaded his case with the Governor. He served under General Cornwallis at the surrender in Virginia in 1781. In 1783 he moved to New Brunswick, Canada where he was reduced to a half-pay ensign in the 2nd Regiment of the Lincoln Militia. He was granted 500 acres of land on the St. Johns River, and on April 1, 1786 his daughter Catharine was born there. The family returned to the United States, residing in Pennsylvania, for a short time. In 1800 Lt. Shannon, with his mother and family, returned to Canada and settled in Stamford Township where he bought 200 acres of land on the Niagara River near the whirlpool. He later served in the Secret Service during the War of 1812 and was stationed at a lookout point on the Niagara River below the falls. In 1806 Shannon’s daughter, Catharine, married Thomas Lundy, fourth son of William Lundy of Stamford Township.

John Smith, M.P fonds, 1930, 1949-1950, 1954, 1957-1962, n.d.

John Smith (1894-1977), son of Daniel Smith and Annie Douglas was a native of Scotland, immigrating to Canada in 1913. He first worked as a coach builder, then as a carpenter, finally developing his own contracting business. During WWI he served overseas with the 10th Battery, RCA as a sergeant. In 1924 Smith married Jean Wood, and together they had a daughter Irene (Hugh Langley). Smith first entered politics in 1940 serving as an alderman for the next 11 years. In 1954 he was elected mayor of the city of St. Catharines, and was twice returned to office by acclamation, serving until 1957 when he successfully ran as the Progressive Conservative candidate representing Lincoln County in the federal election. He won the election by a 10 000 vote majority. He served his constituents in Ottawa until he was defeated in the 1962 election. After leaving politics Mr. Smith was active in his community. He spearheaded the establishment of the St. Catharines Museum, and then was appointed its first director in 1966, serving in that capacity until 1972. He was an active member of the board of governors of the St. Catharines General Hospital and a life member and former president of the Lincoln County Humane Society. In 1971 he was voted Citizen of the Year for the city of St. Catharines. John Smith died on February 8, 1977 and was buried at Victoria Lawn Cemetery. Source: The St. Catharines Standard, February 9, 1977, page 1

Rick Bell Family fonds, 1874-1875, 1879, 1884, 1886, 1888-1889, 1896, 1898, 1909-1910, 1939, 1945, n.d.

Lewis Tyrell married Jane Gains on August 31, 1849 in Culpeper Court House, Virginia. Jane Gains was a spinster. Lewis Tyrell died September 25, 1908 at his late residence, Vine St. and Welland Ave., St. Catharines, Ont. at the age of 81 years, 5 months. Jane Tyrell died March 1, 1886, age 64 years. Their son? William C. Tyrell died January 15, 1898, by accident in Albany, NY, age 33 years, 3 months. John William Taylor married Susan Jones were married in St. Catharines, Ont. on August 10, 1851 by William Wilkinson, a Baptist minister. On August 9, 1894 Charles Henry Bell (1871-1916), son of Stephen (1835?-1876) and Susan Bell, married Mary E. Tyrell (b. 1869?) daughter of Lewis and Alice Tyrell, in St. Catharines Ontario. By 1895 the Bell’s were living in Erie, Pennsylvania where children Delbert Otto (b. 1895) and Edna Beatrice (b. 1897) were born. By 1897 the family was back in St. Catharines where children Lewis Tyrell (b. 1899), Gertrude Cora (b. 1901), Bessie Jane (b. 1902), Charles Henry (b. 1906), Richard Nelson (b. 1911) and William Willoughby (b. 1912) were born. Charles Henry Bell operated a coal and ice business on Geneva Street. In the 1901 Census for St. Catharines, the Bell family includes the lodger Charles Henry Hall. Charles Henry Hall was born ca. 1824 in Maryland, he died in St. Catharines on November 11, 1916 at the age of 92. On October 24, 1889 Charles Hall married Susan Bell (1829-1898). The 1911 Census of Canada records Charles Henry Hall residing in the same household as Charles Henry and Mary Bell. The relationship to the householder is step-father. It is likely that after Stephen Bell’s death in 1876, his widow, Susan Bell married Hall. In 1939, Richard Nelson Bell, son of Charles Henry and Mary Tyrell Bell, married Iris Sloman. Iris (b. 22 May 1912 in Biddulph Township, Middlesex, Ontario) was the daughter of Albert (son of Joseph b. 1870 and Elizabeth Sloman, b. 1872) and Josie (Josephine Ellen) Butler Sloman of London, Ont. Josie (b. 1891) was the daughter of Everett Richard and Elizabeth McCarthy (or McCarty) Butler, of Lucan Village, Middlesex North. According to the 1911 Census of Canada, Albert, a Methodist, was a porter on the railroad. His wife, Josephine, was a Roman Catholic. Residing with Albert and Josie were Sanford and Sadie Butler and Sidney Sloman, likely siblings of Albert and Josephine. The Butler family is descended from Peter Butler, a former slave, who had settled in the Wilberforce Colony in the 1830s. Rick Bell b. 1949 in Niagara Falls, Ont. is the son of Richard Nelson Bell. In 1979, after working seven years as an orderly at the St. Catharines General Hospital while also attending night school at Niagara College, Rick Bell was hired by the Thorold Fire Dept. He became the first Black professional firefighter in Niagara. He is a founding member of the St. Catharines Junior Symphony; attended the Banff School of Fine Arts in 1966 and also performed with the Lincoln & Welland Regimental Band and several other popular local groups. Upon the discovery of this rich archive in his mothers’ attic he became passionate about sharing his Black ancestry and the contributions of fugitive slaves to the heritage Niagara with local school children. He currently resides in London, Ont.

Chapman Stadium, Chapman University, Orange, California

Chapman Stadium shortly before demolition, Chapman University, Orange, California, 2005. This stadium was originally constructed in 1934 by Orange Union High School, Orange, California. Ownership transferred to Chapman College in 1954. It was re-named in 2000 after the son of the university's namesake, Irvin "Ernie" C. Chapman, who played football at Chapman in the early 1930's. The stadium was torn down in 2005 and fully rebuilt and is now part of the Erin J. Lastinger Athletics Complex at Chapman University.