240 THE CANADIAN NATURALIST. [June 



pressed by authors for a more rapid intercliange of views, aud an 

 earlier knowledge of the progress of research ; and the editors hope 

 that the friends and patrons of science will aid in promoting its 

 wider circulation. W^e believe that there are many public and 

 private libraries and reading-rooms, throughout the country, which 

 are not yet supplied with this journal, which is certainly one of 

 the most important of existing scientific publications. 



— The expedition of Yale College students, under the leader- 

 ship of Prof. 0. E. Marsh, spent several months in the Rocky 

 Mountain regions, investigating its flora and fauna, and collecting 

 for the Yale Museum as fine collections as possible of the extinct 

 animal remains found in such abundance in the tertiaries and 

 cretaceous deposits of Nebraska, Dakota, and Wyoming. Leaving 

 this region they will visit California, and after investigating the 

 geolo2;y of the Pacific coast, will return through Colorado and 

 Kansas, reaching New Haven, if possible, in November. We 

 have since learned that their endeavours have been crowned with 

 great success. They spent three weeks examining the geology 

 of the country between the north and south branches of the Pviver 

 Platte, and discovered in Northern Colorada an extensive ter- 

 tiary deposit, abounding in fossil remains. The formation is 

 identical with the " Mauvaises terres'' deposit of Dakota, and 

 apparently forms the south-western border of some ancient fresh- 

 water lake. These beds were traced to the north, and along the 

 North Platte River ; several thousand specimens were collected, 

 and among them a number of new species of tertiary mammals. 



— There has iust been started in the citv of Baltimore, U.S., 

 a society of fifteen members, called " The Maryland Academy of 

 Sciences." It is intended to pay special attention to microscopy. 

 The principal officers are Philip T. Tyson, President ; John G. 

 Morris, Yice-president ; Edwin A. Dalrj^mple, Corresponding 

 Secretary. 



— Prof. Verrill, of New E[aven, has just returned from an 

 expedition to the Bay of Fundy. The greatest depth encountered 

 in dredoino; even as far as fiftv miles from the coast, was not 

 beyond 120 fiithoms. Yery large collections were made, many 

 rare and about sixty new species were discovered, the number of 

 species in Prof. Stimpson's list being more than doubled. We 

 hope soon to have a catalogue of the fauna of the bay from 

 Prof. Yerrill. 



Published Jan. 9th, 1871. 



