406 THE CANADIAN NATURALIST. [Dec. 



soluble in acids. (Lewy, Ann. de Ch. et Pht/s., liii, 1 — 26, and 

 Fournet, Gcol. Lyonnaise. 455). 



§ 31. To these we may add the production of various hydrated 

 crystallized silicates, including apophyllite, harmotome and cha- 

 bazite, during the historic period in the masonry of the old 

 Roman baths at Plombieres and Luxeuil, and by the action of 

 waters at temperatures of from 46^ to 70^ Centigrade ; the 

 presence of apophyllite, natrolite and stilbite in the lacustrine 

 tertiary limestones of Auvergne ; apophyllite iucrusting fossil 

 wood, and chabazite crystals lining shells in a recent deposit in 

 Iceland. The association of such hydrated silicates with ortho- 

 clase, as already noticed (§ 13) and as described by Scheerer. 

 where natrolite and orthoclase envelope each other, showing their 

 contemporaneous formation, with many other facts of a similar 

 kind, lead to the conjecture that orthoclase, like beryl and quartz, 

 and perhaps some other constituents of granitic veins, may have 

 crystallized in many cases at temperatures much lower than those 

 determined by Sorby, and thatthe conditions of their production 

 include a considerable range of temperature ; a conclusion which 

 is however, probably true to some extent, of zeolites also. 



It is proposed to continue the subject of granitic veins, and in 

 a third part of this paper to give some facts in the history of the 

 veinstones of Laurentian rocks. 



NOTES ON THE BIRDS OF NEWFOUNDLAND. 



By Hrnry Ekeks, Y.^a[., F.L.S., <^'e. 



(^Continued from page 304.) 



Procellakiid.e. 



Fulmar Petrel, Proccllaria glacialis, Linn. — Apparently 

 common in its migrations, but I could not learn that it bred on 

 the island. 



LeacJis Pcttel, Thalassidroma Leachi {Temm.) — Tolerably 

 common, and probably breeds on some of the islands in company 

 with the following species. 



