38 resultados para Weber, Max, 1864-1920

em Brock University, Canada


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Soybean (Glycine ~ (L.) Merr. cv. Harosoy 63) plants inoculated with Rhizobium japonicum were grown in vermiculite in the presence or absence of nitrate fertilization for up to 6 weeks after planting. Overall growth of nodulated plants was enhanced in the presence of nitrate fertilization, while the extent of nodule development was reduced. Although the number of nodules was not affected by nitrate fertilization when plants were grown at a light intensity limiting for photosynthesis, at light intensities approaching or exceeding the light saturation point for photosynthesis, nitrate fertilization resulted in at least a 30% reduction in nodule numbers. The mature, first trifoliate leaf of 21 day old plants was allowed to photoassimi1ate 14C02. One hour after·· the initial exposure to 14C02, the , plants were harvested and the 14C radioactivity was determined in the 80% ethanol-soluble fraction: in. o:rider to assess· "the extent of photoassimilate export and the pattern of distribution of exported 14C. The magnitude of 14C export was not affected by the presence of nitrate fertilization. However, there was a significant effect on the distribution pattern, particularly with regard to the partitioning of 14C-photosynthate between the nodules and the root tissue. In the presence of nitrate fertilization, less than 6% of the exported 14C photosynthate was recovered from the nodules, with much larger amounts (approximately 37%) being recovered from the root tissue. In the absence of nitrate fertilization, recovery of exported 14C-photosynthate from the nodules (19 to 27%) was approximately equal to that from the root tissue (24 to 33%). By initiating- or terminating the applications of nitrate at 14 days of age, it was determined that the period from day 14 to day 21 after planting was particularly significant for the development of nodules initiated earlier. Addition of nitrate fertilization at this time inhibited further nodule development while stimulating plant growth, whereas removal of nitrate fertilization stimulated nodule development. The results obtained are consistent with the hypothesis that nodule development is inhibited by nitrate fertilization through a reduction in the availability of photosynthate to the nodules.

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Printed by Order of the Legislative Assembly of Ontario.

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The Gainsborough Presbyterian Church was organized prior to 1833, but no records were kept until this date. In 1809, the church was lead by Rev. Daniel Ward Eastman. In 1833 the church became part of the Niagara Presbytery of the American Presbyterian Church. The records include transfer of membership, records of marriages, lists of subscribers and session minutes. Photocopies from originals were made in 1977 by E. Phelps, University of Western Ontario, prior to their deposit with the United Church of Canada Archives, Toronto, Ont.

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Ridley College was conceived in 1888 by a group of Anglican clergy and laymen eager to establish a school for boys in Ontario that emphasized strong academic and religious values. The school was originally known as Bishop Ridley College, in tribute to Nicholas Ridley, a 16th century English churchman who was martyred during the Protestant Reformation for refusing to renounce his Anglican faith. The first facility was the stately and spacious Springbank Sanatorium; shortly thereafter, construction was begun across the old Welland Canal on a lower school for boys age 5 to 13 on the present-day campus site. The name “Springbank” stems from the name of the hotel constructed in 1864 by Dr. Theophilus Mack on Yates Street. Fortuitously, the directors of what would become Ridley College were looking to found a new boys’ school. The sale of the building was completed in 1888 and Ridley began operations in September 1889. In October 1903, the Springbank building complex was consumed by fire forcing the school to move across the canal to its modern western campus. The Ridley campus grew dramatically during the 1920's, and new buildings and facilities were added in each of the following decades. The school became co-educational in 1973; just over a dozen girls enrolled in the inaugural year, while today almost half of Ridley's students are girls. Adapted from: http://www.ridleycollege.com/podium/default.aspx?t=125335 (March 22, 2011)

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On spine : The Grand Lodge of Canada in the Province of Ontario.

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On spine : The Grand Lodge of Canada in the Province of Ontario.

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Consists of an advertising broadsheet (circa 1920) for Canadian Willite, a permanent asphaltic pavement. This product was used on River Road in Niagara Falls, Canada. The broadsheet features a segment titled "The Road Fit for a Prince" about the Prince of Wales visit to Niagrara Falls on October 20, 1919.

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Poetry of James Anderson during his time in the Cariboo of British Columbia. He left Scotland for British Columbia during the gold rush.

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Annual Convocation proceedings for the year 1920. The title varies slightly and convocation is held at different cities or towns in Canada. Sixty-second annual convocation.

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The reports are also published in the Annual report of the Department of Agriculture of the province of Ontario, and in the Sessional papers of the province of Ontario "Printed by order of the Legislative Assembly" [-1923] "Printed by order of ... Minister of Agriculture" [1924-] 25th, 1893- pub. by the Ontario Department of Agriculture, Toronto 1890 -1908 reports are bound with the corresponding annual reports of the Entomological Society of Ontario 1894 -1905 reports are bound with the corresponding annual reports of the Fruit Experiment Stations of Ontario 1906 -1910 reports are bound with the corresponding Report of the Fruit Branch, Dept. of Agriculture, Ontario

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From American Society of Civil Engineers.