366 Canadian Record of Science. 



The term jade is here used in a somewhat general sense, 

 as no exhaustive mineralogical examination of the various 

 specimens has been attempted, though a typical piece of 

 the Fraser Eiver mineral from the vicinity of Lytton, 

 which has been examined by Dr. B. J. Harrington, proves 

 to be a true nephrite, and other analyses of specimens 

 from the same region render it probable that most, if not 

 all the jade there found, is referable to the same species. 

 The implements here collectively classed as jade all have, 

 however, the characteristic lustre, texture and fracture of 

 that mineral, and a mineralogical hardness of between 6 and 

 T. The colours represented are very varied, as the subjoined 

 enumeration will show, and several more or less blended 

 tints often occur in the same specimen. The implements 

 and fragments here particularly referred to, are those 

 derived from the region above denned, which are in 

 the museum of the Geological Survey of Canada, or depos- 

 ited in the Peter Eedpath museum of McGrill College, in 

 Montreal. The stones of a pale gray or whitish colour, of 

 which the examples occur in the collection of Mr. F. Mer- 

 cier, in the first named museum, are all from the northern 

 part of Alaska, and are with little doubt to be classed as 

 pectolite, as stated by Professor Meyer in passages subse- 

 quently quoted. 



The specimens referred to,' classified according to colour, 

 arrange themselves as below : — 



Grey-greens to greenish greys, pale and dark, gener- 

 ally streaked or mottled ; translucent to sub-trans- 

 lucent and opaque • • . 23 



Dark greens, varying from leek-green to sap-green, 

 and generally translucent 15 



Browns, shading to greenish and greyish, generally 

 streaked, opaque 7 



Pale bluish and and yellowish greens, translucent. ... 6 



Greyish-blue and bluish-grey, translucent (probably 

 pectolite) « 6 



Green and grey, and green and black, mottled 4 



61 



The same series of specimens, classified according to form 



and use, show the following proportions : — 



Adzes 44 



Drill-points or borers (all from Alaska) 6 



Cut boulders 2 



