The Chicago Academy of Sciences. 45 



on the printed documents of the present for the indig- 

 enous natural features. 



The third period has begun, but is not yet closed. 

 Since the Academy entered its new building its work 

 has, with the exception of a few reverses, constantly 

 advanced in value, both to its members and to the 

 public. Its lectures and meetings have been well 

 attended; its publications have increased in number 

 and value, and its museum is open to the public every 

 day in the year. 



The following is a summary of the collections of 

 the Academy : 



Specimens. 



In Mineralogy . . . 5,000 



k ' Paleontology 15,000 



" Lower Invertebrates 2,500 



k ' Mollusca 75,000 



" Arthropoda 35,000 



44 Lower Vertebrates 300 



" Ornithology 4,000 



" Mammalogy , 200 



" Ethnology 1,000 



138,000 



The following are some of the special collections 

 included in the above enumeration : 



Species. Specimens. 



W. C. Egan collection of local Niagaran 



fossils - 200 5,000 



W. C. Egan collection of paleozoic fossils - 1,200 7,000 

 John Walton collection of the genus 



Cypraea - 165 500 



Andrew Bolter collection of insects - 4,000 10,000 



Charles Sonne collection of coleoptera - 2,500 10,000 

 Frank M. Woodruff collection of local 



birds 170 1,000 



Frank C. Baker collection of local mollusks 175 5,000 



Howard N. Lyon collection of mollusks - 10,000 

 William K. Higley collection of local 



mollusks - 2,000 



