Incoming correspondence to George Engelmann from Henry Gillman, for 1867-1882. The correspondence relates to collections of Juncus, Carices, Xyris, Sambucus, Wolffia, Isoetes, Callitriche, Lemna, Charas, Carex, Abies, Coreopsis, Hedeoma, Corispermum, Chenopodium, Aster, Pinus, Lycopodium, Primula, Juniperus, Aplectrum, Houstonia, Corallorhiza, Aspidium, Quercus, Nymphaea, Spiranthes, and Solidago in Michigan, area with good description of plants, habitat and distribution of all as well as exact locations for many. Disillusionment with Florida and description of political situation and living conditions. Evidence of prehistoric civilizations on Isle Royale, and New Madrid, Mississippi with descriptions of findings. Cultivation of various cacti in Michigan.

Folder contains original letters.