signed the illustration of these studies. Upon the 

 present occasion, however, it will be impossible to 

 exhibit a complete view of all or of any one of the 

 accessory sciences, and of their various bearings upon 

 Horticulture. I shall therefore endeavour only to show 

 the Relations subsisting between Insects and Plants, 

 and the useful results to be obtained by the cultivator 

 from a knowledge of the habits and economy of insects. 

 American Entomology is yet in its infancy. Mel- 

 sheimer, a Lutheran clergyman in Pennsylvania, may 

 be considered as the father of the science in this 

 country. His collection of insects was very extensive, 

 and he published a catalogue of one order or group of 

 them in 1806. It contained merely the names of 

 about thirteen hundred and sixty native species, with- 

 out descriptions or a history of their habits. The late 

 Professor Peck rendered no inconsiderable aid to Hor- 

 ticulture and Arboriculture, by his memoirs on several 

 insects injurious to vegetation, illustrated by plates 

 from original drawings of the most faithful kind. Pro- 

 fessor Say, the author of an unfinished work, entitled 

 " American Entomology," and of numerous papers in 

 various periodical publications, has been engaged, for 

 many years, in describing scientifically the unnoticed 

 insects of this country ; and, by his continued labors, 

 has materially facilitated the study, though he has been 

 unable to furnish much respecting the habits of insects. 

 Much, therefore, remains to be done in this department 

 of Natural History, much of immense importance in its 

 practical application to the various arts of life. Some 

 degree of regard for the science appears to be awaken- 

 ed among us ; and we are gradually growing sensible 



