1865.] NATURAL HISTORY SOCIETY. 307 



some of the more difficult minerals. The set consists of about 

 380 specimens, all of which are now labelled and exhibited. These 

 two last collections, which have never been exposed to view until 

 now, occupy one of the new cases which were got last winter. A 

 number of miscellaneous minerals of interest have been labelled 

 and placed temporarily in the case in the aquaria room. The 

 number of specimens labelled is about 165. A great many dupli- 

 cates and worthless specimens have been selected and put away. 

 The number of specimens of rocks and minerals that are now 

 named and exhibited in the museum may be approximately 

 summed up as follows : 



Dr. Holmes's Collection, with additions, over 1400 specimens. 



Canadian Rocks and Minerals 200 " 



Rocks and Minerals of Vesuvius 370 " 



Miscellaneous do 165 " 



In all upwards of 2135 specimens. 



Some 500 or 600 specimens remain without any localities ; they 

 are mostly duplicate examples, and are in some cases undetermined. 



The second new case has been entirely devoted to our collection 

 of fossils. The old series was totally unnamed and devoid of 

 any attempt at arrangement. Many new specimens have been 

 added during the past session. Dr. Dawson has contributed several 

 Devonian, Carboniferous and Post Tertiary species, Prof. Dana 

 some Carboniferous and Cretaceous forms ; and during last summer 

 I received several donations to this part of our collection from 

 various friends in the United States. The local fossils of the 

 neighborhood of Montreal I have collected in person : most of 

 these will be found in the collection. To Mr. Billings I am 

 indebted for the determination of the Silurian and Devonian 

 species, and to Principal Dawson for the nomenclature of the Car- 

 boniferous fossils ; those of the Mesozoic and Tertiary periods were 

 determined by myself. 



The following is an estimate of this branch of our Collection. 



Lower Silurian 61 species. 



Middle " 23 " 



Upper " 1 " 



Devonian.. 31 " 



Carboniferous 57 " 



Lias 21 " 



Oolite 42 » 



Cretaceous 30 " 



Tertiary... 12 " 



Post Tertiary 36 " 



In all about 314 species. 



