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Fascimile of 'a reduced scale of series 28 "Animals in Motion" photographed with an automatic electrophotographic apparatus in 1878' by Eadweard Muybridge. The text beneath the image notes that the above series depicted in 19 frames the 'phases of one complete stride of the horse "Edgington" which was owned by Senator Leland Stanford while trotting at a speed of a mile in 2 minutes and 16 seconds at Palo Alto, California in the Spring of 1879.'

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Photograph of a Burbank spineless Opuntia leaf cutting with a single fruit from which five large leaves are growing.

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Photograph of rows of Morastel vines at the Carlisle Vineyards in the Russian River Valley, California, USA in the early 20th century.

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The Correspondence from Captain Clarence Edward Dutton sub-series consists of:

Scope and Contents Letter to Sir Archibald Geikie from Capt Clarence Edward Dutton telling Geikie that he has declined the invitation from the journal Nature to review Geikie's forthcoming publications, as he will shortly be leaving for the Sandwich Islands (now Hawaii) to do field work in preparation for a systematic study of the volcanic fields of California and Oregon. He recommends his colleague Grove Karl Gilbert for the task and asks Geikie if he will review his new monograph...

Scope and Contents The correspondence between Charles Thomas Jackson and Charles Lyell mainly concerns the geology of the United States and Jackson's discoveries. Specific subjects include: Ether, New Brunswick, Paleonisci, and Abraham Gesner. Lyell or his team, have summarised the letters, either on the envelope, or on the letter itself - usually in the space allocated to the address. Where there is a summary, it has been transcribed here. ...

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Photograph of an orange orchard in Ontario, California with rows of irrigation ditches between the trees in the early 20th century.

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Photograph and text from O F Fuller's book 'Wild Wheat of Palestine' describing wheat kernels of differing sizes grown in Bard, California, USA. It also mentions that 'Triticum dicoccum dicoccoides renamed Triticum hermonis by O F Cook of the USA Department of Agriculture in 1910.'

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Photograph of a sample of heads of Wild Wheat of Palestine 'as grown in Bard, California, USA.' The text notes that it is from O F Cook's 'Wild Wheat of Palestine' and courtesy of the United States Department of Agriculture in the mid-20th century.