Incoming correspondence to George Engelmann from Theodore Charles Hilgard, for 1846-1874. The correspondence relates to collections for Engelmann with his brothers, Eugene and Julius; need for insect pins; need for Gray's text - using Beck; Siegman (courier) of Braun's whiskey transport are only means of sending collections; plans for leaving Washington to visit Julius and on to Germany; studying (in Heidelberg) botanical courses and obstetrics; sale of Fendler's collections in Philadelphia; medical practice; meeting of American Association of Physicians in Philadelphia; W. Hooker's unflattering comments about "outposts" of science. Regni Vegetabile Series Naturalis; treatment for a tooth problem - quinine, morphine and red wine; completion of index of U. S. Coast Survey publications; authorization by Prof. J. E. Hilgard to deposit the set of Coast Survey papers he has in St. Louis Academy of Science.

Folder contains original letters.