The only Ajnericcm Text JBoolc of Etito'inologij. 



% dimk in iht Stxxbn d Instrf^, 



Being a popular iutroduction to the sturly of Entomology, and a 



treatise on Injurious aud Beneiicial Insects, witli descriptions 



and acconuts of the hahits of Injects, their tranal'orma- 



tions, development and classification. 



By J^. S. 3?ACI\ ATM), Jr., nVI. D., 



Curator of Articulata at the Peahody Academy of Science, Lecturer on 



Entomology at Boicdoin College, and Entomologist to the 



Mass. State Board of Agriculture. 



Containing 715 pages. 15 full page plates and G70 cuts in the text, embrac- 

 ing 12C0 figures of A:\T.EXtiCAN Insists. In a lai'ge octavo volume, printed 

 on extra paper and in full cloth binding. 



Third and Improved Edition. Price reduced to $5.00. 



The GtlTDB has already been introduced either as a text-book, or for 

 reference, in Harvard University, Williams College. Dartmou-th College, An- 

 tioch College, Massachusetts Agricultural College and other institutions in 

 this country, and in Oxford and Cambridge Universities, England. 



P^iibUshediby the. NAXITRAJjISTS' AGJENCT, Salem, Mass. 



We give a few of the large number of testimonials relating 



to the character of this work. 



Kot only does your book fully justify its title for its clearness and the 

 concise presMitation of a difficult snbject. but it is emphatically a giude to 

 the study of insects injurious to vegetation, owing to the constant refer- 

 ence it contains to topics pertaiaiug to economic entomologv. I will say 

 more : I hold that your work ought, in connection with Harris's '' Treati&e 

 on Insects Injiirious to Vegetation," to which it is, as it were, the Key, to 

 be inti-oducetf in all our Agricultural Colleges, as the best text-book of "that 

 kmd now extant. — Extract from letter of Frof. L. Agassiz. 



J hare received Part ten of your GtriDE TO the Stttdt of Insects, 

 ■which brings the whole work so successfully to its completion. After all 

 the good things that have been said of it at home and abroad, any com- 

 mendation of mine wo-uld be quite sui>€rfluotis. I will, however, express 

 my obligation for both the pleasure and instruction I have received in 

 reading it.— Extract from letter of Prof. J. Wyman. 



The first two parts are, we do not hesitate to affirm, tire best things of 

 the kin-d that our language pos.'sesses. We have seldom fallen on so 

 thorouglily good a scientific ti-eatiee as the one whose featiu-es we have 

 briefly sketched, and we can only conclude our notice of it by advising all 

 our natural history readers to make its acquaintance. There is no work we 

 should prefer to it as a book for the eCudent, for it is a treiitise whivh tlis- 

 plays an absolute avoidance of mere compiLition, and it is pervaded by 

 euch a tone of earnestness, and contains so many original ohsei-vations, 

 that the reader is inducted by it out of tlie usual book-laud of idealism into 

 the substantial region of actuality and iact.— Scientific Opinion^ Lomlon. 



Too often do we meet with a manual in which there is little more tlian a 

 description of the extenial ciiaracters which uob'xly is satisfistl with, 

 because it is not full enough for the mere collector, and for the general 

 reader is too dry. Packaid's work has succeedeU throug'hout in satibfyiug 



