Two photographs - on the left, 'A Pretty Equestrienne' shows a girl, Miss Ashton Wilson from Chicago with her horse; and on the right, 'A "Woman Hater"' shows a horse being trained for police work in London rearing up at the sight of dummies dressed as women in the early/mid 20th century.

Illustration of a carcass of a fat hog 'showing the division commonly made and the relative prices of the various parts in the Chicago market' in the early 20th century.

Photograph of the holding pens for cattle at the Chicago Stockyards in 1800.

Photograph of horses being loaded onto trains at the Chicago Stockyards in the early 20th century.

Illustration of the Cruickshank bull, "Young Abbotsburn" (110679) who was the champion of all beef breeds, World's Columbia Exposition, 1893 [Chicago, IL, USA]

Illustration of an advertisement for a 'Standard Earth Auger' by the Standard Earth Auger Co. in Chicago, Illinois, USA in the late 19th or early 20th century. In addition to the text, there are images of two men using the auger.

The photograph features Gordon Dickerson, Douglas Falconer, Jay Lush, Alan Robertson and Forbes Robertson. The photograph enclosure is inscribed 'Dr Falconer we have thoroughly enjoyed your talk' by Gordon D. Rapp, Poultry Breeders Roundtable and signed March 1955.

Notes and text for seven lectures looking at the geological history of the American continent, looking at specific locations therein, based partly on results from American survey work. These locations were related to to other places around the world, particularly in Britain and Europe. A variety of geological formations were looked at, including that of the continent itself, considering the materials which make them up and the geological timeframe.

Letter, 27 May 1952, Chicago, John Thompson to Mary Grierson. Praising Grierson's biography of Tovey, describing Thomson's attempt to set up a library devoted to all things Scottish, and his patronage of Scottish arts, requesting Grierson's opinion on the state of Scottish music. Typescript signed.

Letter, 1952, Chicago, John Thompson to Mary Grierson. Thanking Grierson for her letter and discussing the state of the arts in Scotland. Typescript signed.