14 GEOLOGICAL SURVEY OF THE TERRITORIES. 



The memoirs that are either now in press or in an advanced state of 

 preparation are numerous and important. 



Volume IX, " The Fossil Invertebrata of the Western Territories," by 

 F. B. Meek, is nearly through the press. It will contain 45 plates, with 

 a. great number of wood-cuts scattered through the text. Mr. Meek has 

 most thoroughly elaborated every genus, and given the synonymy of all 

 the species with unusual care. He regards this memoir as his great life- 

 work, and it will add greatly to his fame as a paleontologist. 



Volume X will be a " Monograph of the Geomitrid Moths", by Dr. A. S. 

 Packard. It will form a memoir of 450 pages quarto, with 13 plates, 

 on some of which are engraved one hundred figures. This work is now 

 rapidly passing through the press. 



Volume VII, " The Fossil Flora of the Lignitic Tertiary Formation of 

 the Western Territories ", by Leo Lesquereux, is intended to be a mono- 

 graph of that subject. It will contain sixty-five quarto plates, all of 

 which have been engraved by Messrs. Sinclair and Son, Philadelphia. 

 Mr. Lesquereux is now at work on the text, and it is expected to be much 

 superior to the Cretaceous Flora, which was received with such marked 

 favor throughout the scientific world. 



Volume VIII was originally designed to form an extended memoir 

 on the Fossil Flora of the Cretaceous and Tertiary formations of the 

 West, by Dr. J. S. Newberry. Twenty-six plates have been engraved, 

 and an edition of 2,500 copies printed for over four years. It is to be 

 hoped that some portion of this volume will be issued the present 

 season. 



A very interesting memoir, in octavo form, entitled "The Ethnog- 

 raphy and Philology of the Hidatsa Indians (Minnetarees of the Upper 

 Missouri) is now in the press. It was prepared at my request by Dr. 

 Washington Mathews, U. S. A. Dr. Mathews spent some years at Fort 

 Berthold, on the Upper Missouri, as surgeon of the military post, and 

 his leisure time was devoted to the study of the language and history of 

 this interesting tribe. An edition of 100 copies was printed by Mr. 

 Shea, of New York; but since that time Dr. Mathews has very much 

 enlarged and improved the memoir, and many portions of it he has en- 

 tirely rewritten. I had originally intended that it should be substituted 

 for a chapter I had written on this, many years ago, in a volume on the 

 Indian tribes of the Northwest, which is intended to form one of the 

 quarto series of the Survey : but when I found the manuscript to be so 

 elaborate and complete, I preferred to issue it as a separate volume or 

 monograph. I am confident that this memoir will be received with 

 great favor, and that scholars in this country and in Europe will be 

 profoundly grateful for this his labor of love. 



The Bulletin of the Survey was originally started to embrace such 

 articles as demanded immediate publication on account of their peculiar 

 value or character. Many new species of animals and plants have been 

 collected from time to time, which needed to be published promptly to 



