28 
A great number of verbal reports were also given to visitors who 
brought in specimens for determination. A large number of short reports 
were given to officers of the department. Altogether more than 3,500 speci- 
mens were studied and reported upon. 
In addition to his duties as Chief of the Division and to his work men- 
tioned above, Eugene Poitevin supervised the preparation of special exhibits 
displayed at Chicago, Ottawa, and Montreal. 
At the request of the Ontario Department of Health he has been for 
the last six months making investigations of mineral residues from silicotic 
lungs. So far six lungs have been examined and the work is still in progress. 
H. V. Ellsworth collaborated in the determination of, and reporting on, 
minerals sent in by prospectors and others and in the general work of the 
division. He made many special qualitative and quantitative determina- 
tions of rare elements and radioactivity. The investigation of possible 
Canadian sources of vanadium ores was continued and a new vanadium 
mineral was discovered. 
During the year H. Y. Ellsworth submitted two papers for publication : 
“ Uraninite from Lac Pied des Monts, P.Q.” (in collaboration with Prof. 
F. F. Osborne, McGill University) and “Nickeliferous and Uraniferous 
Anthraxolite from Port Arthur, Ont.” 
R. J. C. Fabry, rock analyst, has carried on the following chemical 
investigations: 
Rocks 
Norite No. 1 
Norite No. 2 
Bigwoodite 
Hornblende andesite 
Locality 
Copper Cliff, Ont. 
Copper Cliff, Ont. 
Bigwood, Ont. 
Cross Lake, Man. 
For W. H. Collins 
For W. H. Collins 
For T. T. Quirke 
For H. C. Horwood 
Minerals 
Scapolite Lot 3, range III, Aug. of Gren- 
(two analyses) ville tp., Que. For Eugene Poitevin 
Scapolite N. i lot 18, range II, Harring- 
ton tp., Que. For Eugene Poitevin 
Manganese concretion Lake Ossipie, N.H. For E. M. Kindle 
Jarosdte (?) Manitoba For J. F. Wright and C. H. 
Stockwell 
Silicotic Lung Residue 
One complete analysis (Ont. Bur. Health No. 1448) for Eugene Poitevin. 
One partial analysis (Ont. Bur. Health No. 1539) for Eugene Poitevin. 
Mr. Fabry also did a considerable amount of qualitative work required 
in the determination of specimens sent in by the public. Among the more 
numerous tests may be cited those for nickel, sulphate, alumina, manganese, 
phosphate, lime, and magnesia, as well as other common elements. 
During the summer months Mr. Fabry helped in Museum work and in 
the preparation of exhibits. 
