Eminent and versatile Swiss-born American zoologist and geologist (1807–1873) who carried out much of his research as a longtime faculty member at Harvard, where he was also instrumental in building the university’s enviable natural history collection. Original 2.25 x 4 full-length carte-de-visite photo of Agassiz in a parlour setting, signed in the lower border in black ink, “Ls. Agassiz.” In fine condition, with a small ding to top left corner tip. RR Auction COA.