GO 



The following is a list of the species described and figured (for the 

 most part) in this important ])aper : 



1. Endoceras annulatum, Hall, var. 



2. " subannulatum, Whitfield. 



3. " crassisijjhonatum, N. Sp. 



4. Orthoceras Simpsoni, Billings. 



5. " semiplanatum, N. Sp. 



6. " Selkirkense, N. Sp. 



7. " Winnipegense, N. Sp. 



8. A^tinoceras Richardsoni, Stokes. 



9. " Bigsbyi, Bronn. 



10. " AUumettense, Billings. 



11. Sactoceras Canadense, N. Sp. 



12. Gonioceras Lambii, N. Sp. 



13. Potrrioceras nobile, Whiteaves. 



14. " apertum, Whiteaves. 



15. " gracile, N. Sp. 



It is interesiing to note the wide geographical distribution of 

 Adiyioceras Bigsbyi, Bronn, and of A. AUumettense. These two species 

 are well known in the Ottawa region, where there are many Cephalo- 

 pods of considerable interest which deserve careful study and examina- 

 tion. 



:o: 



* 



A BOOK FOR BOYS. 



We are much pleased to announce that Mr. S. H. Scudder, the 

 well known author of an extensive work on the " Butterflies of the 

 Northern United States and Canada," has now in preparation a Manual 

 for Boys, upon the same subject as his great work. A most noticeable 

 difference between boys and girls in Europe and on this continent 

 is that, in the former nearly every child has some hobby — some pleasant 

 and in most cases improving, but at any rate all-satisfying occupation — 

 to keep it out of mischief. To children Nature offers great charms. 

 There is not a single large school wh^re some of the boys do not study 

 Natural History. The masters, well knowing the value of these pursuits 

 not only on account of their great use in education as preparing the 



