164 THE CANADIAN NATURALIST. [Vol. X. 



Mills: ; the proprietor having built a reservoir of hydraulic cement 

 over the spring. At '' Sulphur Springs," Ancaster, the amount 

 of gas is not so large, arid the supply is scarcely more than enough 

 to saturate the water, from which the sulpliur is precipitated on 

 exposure to the air. In both of these localities the gas arises 

 from decomposing pyrites in the surrounding rocks. 



VIII. — CATALOGUE OF NIAGARA FOSSILS FROM CANADIAN 



LOCALITIES. 



In the followin<r catalogue I have endeavoured to siive a full 

 list of all the fossils that have been discovered in the region 

 under consideration. As no extensive Canadian catalo^rue has been 

 published, I have been compelled to depend largely on my own 

 collection, many species of which have been presented to me by 

 Col. Grant. A few of the included species are not in my collec- 

 tion, having years before been sent away from the region by the 

 collectors, of whom Col. Grant is the most indefatiuable. The 

 best collection of Spovges and Stroma tojiora is that of Mr. A. 

 E. Walker. Of the former group several species have remained 

 undescribcd. Some of the species, including most of the Grap- 

 tolite /(imilj/, are the TYPE SPECIMENS, dej-criptions of which 

 are about to be published. Had Col. Grant retained all his 

 own collection, he would have been able, no doubt, to have con- 

 siderably swelled my list. 



The best localities at Hamilton for collecting fossils are at the 

 " Jolly Cut," and in the adjacent openings in the quarries along 

 the sides of the " Mountain," both east and west of this place. 

 Also, in the gorges at the heads of James and Queen streets; at 

 the "Bluff," near the city reservoir ; along the Hamilton and 

 North-Wcstern Railway to the summit of the hills ; in the ra- 

 vines near Mount Albion; on lots 4 and 5, Range VII, of 

 Barton, along the Rosseaux Creek ; and on lot 15, Range VI, 

 of the same township. At Dundas, the various glens form the 

 best localities, as well as Sydenham road. At Grimbsy the 

 richest fauna is found up the " Ravine," where the fossils are in a 

 better state of preservation than at any other place in our Pro- 

 vince. Other localities are at Thorold, Limehouse (on the G. T. 

 Railway), and Rockwood. 



