302 PROCEEDINGS OF THE CANADIAN INSTITUTE. 
of these “shows” have been opened on a single lot. Dr. Hunt and 
Mr. Gordon Broome have both described a group of about twenty 
nearly parallel veins of apatite on lot 4, range V, of North Burgess. 
(Geol. Survey Reports, 1863-66, pages 226-27, and 1870-71, page 
317). They all diminish rapidly north-westward in receding from 
the shore of Rideau Lake and may belong to the class of parallel 
joint-deposits I have described. In this township, and those adjacent 
to it, the apatite is often found in isolated crystals and masses in 
calcite or coarsely crystalline limestone, which is generally of some 
reddish shade and is mostly associated with or near to the pyroxene 
rock. These deposits Dr. Hunt regards as veins also. 
Apatite has been detected in a very large number of places in the 
two principal regions above referred to and in a good many localities 
in Renfrew connty. In addition to these, it has been found in 
Canada in crystalline limestone in the Augmentation of Grenville 
and at the Calumet Falls in the latter township, at St. Roch in the 
parish and county of Assumption, in an intrusive mass of fine grained 
grey dolerite, in the township of Barford (Eastern Townships), in a 
vein of quartz with copper pyrites, native copper and mica. I have 
also found it in crystals with mica in a compact grey dolomite in the 
township of March, county of Carleton. It is mentioned among the 
minerals brought home in 1878 by Mr. Ludwig Kumlien from Cum- 
berland Inlet, where the rocks are believed to be Laurentian. I 
may mention, in this connection, that near North Bluff in Hudson’s 
Strait I have picked up a piece of crystalline limestone quite like 
one of the common Laurentian varieties. Sir John Richardson found 
apatite in the neighborhood of the Coppermine River. 
I have already noticed its occurrence in igneous rocks at Trout 
Lake, north of Lake Huron, in the isolated mountains of the Pro- 
vince of Quebec, and on the Bay of Chaleur. - 
If the view I have taken of the mode of occurrence of our prin- 
cipal apatite deposits be not sufficiently elaborated or satisfactory, it 
may at all events point the way to further investigations in this 
(lirection. 
Mr. Notman mentioned the view that phosphates being 
fertilizers, must be of animal origin. 
Mr. Shutt, referring to a recent paper by Dr. G. Dawson 
maintaining that view, argued against it by showing that the 
