History of Entomology in the United States. 21 
entomologists. Various scientific journals of our country are en- 
riched with his papers on this and various other branches of nat- 
ural history. He furnished fifty four contributions for the jour- 
nals, besides three 8vo volumes on entomology exclusively. Be- 
sides insects, he described numerous fresh-water, marine, and land 
shells, crustacea, arachnides, reptiles, several species of mammals, 
radiata, zoophytes, annulosa, myriopoda, and entozoa. He wrote 
also a valuable paper on fossil geology, but his principal and favor- 
ite study was entomology. He described eleven hundred and fifty 
Coleoptera, two hundred and twenty five Diptera, one hundred 
Hemiptera, and one hundred species of other orders. He estab- 
lished several new genera, made many valuable observations on 
those already recognized, and numerous interesting and curious 
remarks on the habits and transformations of insects. 
It is to be regretted that his papers are scattered through a va- 
riety of publications, from the Transactions of the American 
Philosophical Society, through Kearine’s Narrative of Lone’s Ex- 
pedition, down to a village newspaper, so that it is impossible for 
the student to procure them all, and some of them are irrecover- 
ably lost. A proposal was issued by M. Gory of Paris, a few 
years ago, to collect them all and translate them into French, but 
it is believed the work was suspended after the publication of four 
thin livraisons. 
I have thought it well to give the titles of his papers on insects 
and the work in which they are published. It may be of benefit 
to those who desire to consult them or possibly to collect them. 
1. Description of several new species of North American in- 
sects.—Jour. Acad. Nat. Sciences, Phila., Vol. I, p. 19, 1817. 
2. Some account of the insect known by the name of the 
Hessian fly, and of a parasite insect that feeds on it.—Jour. Acad., 
Vol. I, p. 45. 
3. Monograph of the North American insects of the genus 
He cages ag Phil. Soc. Trans., New Series, Vol. I, p. 401, 
4. Description of the Thysanoura of the United States.—: 
Jour. Acad., Vol. II, p. 11, 1821, 
5. On the South American species of Oestrus, which infests 
the human body.—Jour. Acad., Vol. II. p. 353, 1822. 
6. Descriptions of insects of the families Carabici and Hydro- 
eanthari inhabiting North America.—Am. Phil. Soc. Trans., New 
Series, Vol. II, p. 1. 
