The first part of this, the second, volume of Contributions to Canadian 

 Palseontology, consists of three illustrated papers by Dr. S. H. Scudder, 

 of Cambridge, Mass., to whom the Survey is greatly indebted for his 

 gratuitous labours in the interests of science. 



Two of these papers are devoted to descriptions and illustrations of 

 Tertiary and Post-Tertiary insects from British Columbia, and the third 

 to descriptions, also illustrated, of Myriapods and Arachnids from the 

 Carboniferous rocks of Nova Scotia. 



Although begun under the title " Canadian Fossil Insects," it has 

 been found convenient to include the third paper on Myriapods and 

 Arachnids in this part of volume II. of the " Contributions." 



The specimens upon which the descriptions are based are for the 

 most part in the Museum of the Survey. 



The drawings for the five plates which accompany this publication were 

 made by Mrs. Katherine P. Ramsay and Mr. J. H. Blake, under Dr. 

 Soudder's supervision. 



A small separate edition of each of these papers has previously been 

 supplied to the author and distributed by him. 



GEORGE M. DAWSON. 



Geological Survey op Canada, 



Ottawa, 15th November, 1895. 



