most splendid works ever published in America. It will be pub- 

 lished in six volumes, in imperial octavo. The first volume is now- 

 ready, and the succeeding volumes will be published at short inter- 

 vals, so that the whole shall be completed at an early period. 



The price of the whole work, with the Plates finely colored, will 

 be Forty Four Dollars — the first and second volumes, Eight Dollars 

 each; and the third, fourth, fifth, and sixth, Seven Dollars each; 

 payable on delivery of each volume. With the Plates uncolored, 

 the price will be Five Dollars per volume. 



Those persons who possess the former edition of Miehaux's work, 

 can procure the three additional volumes separately, and thus com- 

 plete their copies. Price with colored Plates, Seven Dollars each ; 

 with Plates uncolored, Five Dollars each. They are requested to 

 transmit their names as early as possible. 



Subscriptions received by the Publisher. 



J. DOBSON, No. 106, Chestnut Street, Philadelphia. 





J. DOBSON has also in coarse of Publication, 



Monograph y of the family Union id.se, or Naiades of Lamarck. 

 (fresh-water bivalve shells,) of North America — illustrated by 

 figures drawn on stone from nature, and finely colored. By T. 

 A. Conrad, Curator of the Academy of Natural Sciences ofl 

 Philadelphia, be. be. be. Of this work, Nos. I to 12 have 



5 been published — each number contains five finely colored Plates ; 

 price per number $1. Also, by the same author, 



Fossils of the Medial Tertiary of the United States. Of 

 this work have been published No. K containing 17 Plates, price 

 $1.50 — and No. 2, containing 12 Plates, price $1 — to be com- 

 pleted in four numbe 



A Monograph of the Limniadks, or Fresh-Water Univalve 

 Shells of North America, by S. S, Haldbman, Member of| 



the Academy of Natural Sciences. Nos. I. 2, and 3, are publish- 

 ed, each containing 5 most splendid colored Plates, price $1 each, 

 to be completed in about eight numbers. 



North American Hekpetology, or a description of ihe Reptiles 

 inhabiting the United States. By John Edwards Holbkook, 

 M. D., &c. &c, wifh very numerous and splendid colored Plates, 

 to be con^leteri in five volumes royal quarto. Price per volume 

 $10. The fifth volume of this magnificent work is now in press, 

 and will soon be ready. 



(U~ Orders for all classes of American and Foreign Publica- 

 tions, including Magazines and Periodicals, American, English, 

 French, German, &c, promptly executed. 



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