124 resultados para Volatilità implicita, formula di Black and Scholes


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A young woman seated with arm resting on a side table is pictured in this small black and white tintype photograph. The date, location and name of the photographer are unknown. This tintype was among the family memorabilia in the possession of Iris Sloman Bell, of St. Catharines, Ontario. The Sloman - Bell families have relatives who were former slaves from the United States. They escaped to Canada and later settled in the London and St. Catharines areas of Ontario."Tintypes were the invention of Prof. Hamilton Smith of Ohio. They begin as thin sheets of iron, covered with a layer of black paint. This serves as the base for the same iodized collodion coating and silver nitrate bath used in the ambrotype process. First made in 1856, millions were produced well into the twentieth century. When tintypes were finished in the same sorts of mats and cases used for ambrotypes, it can be almost impossible to distinguish which process was used without removing the image to examine the substrate." Source: American Museum of Photography http://www.photographymuseum.com/primer.html

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Black and white, 12 cm x 17 cm photograph, mounted on board, of DeVeaux Hall in St. Catharines, Ontario. It was built by Samuel DeVeaux Woodruff. Shown in this photo are Thomas Woodruff and Julia Cleveland Woodruff. This photo was described by R.W. Band in 1973 and is included.

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Black and white, 13 cm x 9 cm black and white photo which has been taken from a scrapbook. This is a photo of Aunt Emma Woodruff and Julia Woodruff (Mrs. Warren Perry).

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Black and white photograph, 6 ½ cm x 10 cm, of 2 women and a man. The inscription on the back reads “Emma Osgood Mead (“Blind Aunt Emma”), Osgood Woodruff and Henry C. Woodruff (Mrs. Percy Band’s father was a cousin to this ‘Uncle Henry’).

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Black and white photographs, 19 cm x 24 cm of the interior of an unidentified house showing the staircase and landing, looking down a hallway to an exterior door. The photograph was taken by Wurts Brothers General Photographers of New York City (2 copies).

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Black and white photograph, 23 cm x 18 cm, of Julia Cleveland Woodruff posing with Margaret Julia Woodruff. Julia is seated and Margaret is standing. The photo was taken by Dudley Hoyt of New York.

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Black and white photograph, 23 cm x 17 cm, of Margaret Julia Woodruff Band in a seated position, wearing a lace dress and wide- brimmed hat. The photo was taken by Dudley Hoyt of New York.

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Two black and white photographs in an ornate, folding silver case measuring 6 cm x 4 cm (when folded). This case contains two 4 ½ x 3 ½ photographs. One photograph is of Percy Carruthers Band and the other is Robert Band as a young man.

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Black and white photograph of the tower cafeteria.

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Materials related to military and naval operations of the 1812 era, research of the late Robert Malcomson, Canadian author and historian. Materials include photocopies of materials relating to the War of 1812, photographs and detailed research notes Malcomson made regarding his approach to research (mainly found in Series VIII). Materials were originally arranged in binders relating to an area of research or a certain publication. Articles were removed from the binders and placed in folders using original titles from the binders as series or sub-series titles. Articles within the binders were separated by tabs indicating what the article related to in the publication or topic of interest. In order to avoid repetition, the writing on the tab was used for folder titles, as each folder would be a part of the Series under which it was grouped. The tab names could be authors, events, accounts etc. of the War. Series and sub-series titles were derived from the original titles on the binders. Original intellectual order was retained, grouping similar subjects into Series and Sub-series. Dates recorded were the publication dates of the articles; however, if no publication date was present the date of retrieval was used if from an academic database (ex. JSTOR). The black and white photos from various repositories are reproductions of paintings, microfilm etc. on photographic paper. The colour photographs from various repositories are actual photographs. All books donated by Malcomson were integrated into the University’s Special Collections book collection. These volumes are noted at the end of the finding aid under separated materials.

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Survey map and description of George Keefer's land created by The Welland Canal Company. Included is a written description of the land along with a drawing of the land. Noteable features include; road, road allowance, line between Black and Keefer's land, township line, reservoir, bridges, lock no's. 32, 33, 34, 35, mill. Surveyor notes are seen in pencil on the map. Land is composed of sections of lot no.s 9 and 17 in Thorold. The land is a total of 28 acres, 2 roads, and 12 perches.

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An unidentified young woman is featured in this black and white cabinet card by photographer C. Arthur, of St. Catharines, Ontario. The address of Mr. Arthur's studio is printed along the bottom of the photograph. This photograph was among the family memorabilia owned by Iris Sloman Bell of St. Catharines. The Sloman - Bell families include relatives who were former African American slaves who settled in Canada.Charles A. Arthur is listed as a photographer in St. Catharines from 1880 - 1883 and Charles P. Arthur (possibly a son?) was a photographer in the same city in 1898. Source: Phillips, Glen C. The Ontario photographers list (1851-1900). Sarnia: Iron Gate Publishing Co., 1990.

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An unidentified young woman is featured in this undated black and white studio photograph by C. Arthur, Photographer, of St. Catharines, Ontario. This small cabinet card photograph was in the possession of the Iris Sloman Bell family of St. Catharines. Relatives of the Sloman - Bell families include former African American slaves who settled in Canada.Two photographers by the name of Arthur are listed as working in St. Catharines, Ontario in the second half of the 19th century. Charles A. Arthur was a photographer from 1880 - 1883, while Charles P. Arthur (possibly a son?) is listed as a photographer in 1898. Source: Phillips, Glen C. The Ontario photographers list (1851-1900). Sarnia: Iron Gate Publishing Co., 1990.

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Undated black and white cabinet card portrait of an unidentified young woman. This photograph was taken by R. F. Uren whose studio was located at 79 St. Paul St., St. Catharines, Ontario. This item was among the memorabilia in the possession of the Rick Bell family of St. Catharines. Relatives of the Bell family are descended from former Black slaves from the United States.Richard Frank (R.F.) Uren was a photographer in St. Catharines from 1886-1895. Source: Phillips, Glen C. The Ontario photographers list (1851-1900). Sarnia: Iron Gate Publishing Co., 1990.

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Two unidentified girls are featured in this black and white cabinet card style photograph by R. F. Uren, of St. Catharines. The photograph is not dated, however, the address of the photographer is printed at the bottom of the cabinet card. This photograph was in the possession of Iris Sloman Bell, of St. Catharines, Ontario. The Sloman - Bell family descendants include former African American slaves who settled in Canada.Richard Frank (R.F.) Uren was a photographer in St. Catharines from 1886-1895. Source: Phillips, Glen C. The Ontario photographers list (1851-1900). Sarnia: Iron Gate Publishing Co., 1990. "Cabinet card photographs were first introduced in 1866. They were initially employed for landscapes rather than portraitures. Cabinet cards replaced Carte de visite photographs as the popular mode of photography. Cabinet cards became the standard for photographic portraits in 1870. Cabinet cards experienced their peak in popularity in the 1880's. Cabinet cards were still being produced in the United States until the early 1900's and continued to be produced in Europe even longer. The best way to describe a cabinet card is that it is a thin photograph that is mounted on a card that measures 4 1/4″ by 6 1/2″. Cabinet cards frequently have artistic logos and information on the bottom or the reverse of the card which advertised the photographer or the photography studio's services." Source: http://cabinetcardgallery.wordpress.com/category/cabinet-card-history/