24 
The following are the more outstanding items of museum work per- 
formed : 
(1) Preparing a large mineral collection for Prof. Gordon, Academy 
of Natural Sciences of Philadelphia, in return for a very fine collection of 
rare minerals received from him. 
(2) Completing a large travelling Geological Survey exhibit. 
(3) Preparing a large number of collections for the Quebec Bureau of 
Mines. 
(4) Separating duplicate specimens from the systematic mineral 
collection. 
(5) Incorporating in the systematic collection, a large number of 
specimens collected in 1930 by H. V. Ellsworth and Eugene Poitevin. 
Field Work 
Eugene Poitevin spent about forty days in the field continuing his 
study of the mineralogical problems of the Thetford Mines area, Quebec. 
He also collected a large suite of chromite specimens and assisted Professor 
Gilchrist and Mr. Miller in their geophysical studies in Thetfoid Mines 
camp. 
H. V. Ellsworth spent three weeks in Parry Sound district and central 
Ontario in the study of rare-element mineral occurrences, examining 
particularly the uraninite occurrences on the properties of the Ontario 
Radium Corporation. 
Laboratory Work 
As usual, a large number of minerals were submitted to the mineralo- 
gists of the division for identification and to report on as to their com- 
mercial value. This year at least five thousand specimens were so exam- 
ined and reported on; last year the total number of determinations was 
nearly three thousand. 
Research work on special problems has been conducted in the labora- 
tory. E. Poitevin spent considerable time in a detailed study of chromite 
ores and their associated ultrabasic rocks. H. V. Ellsworth made a 
detailed investigation of various rare-element minerals including uraninites 
from Parry Sound district and from southeastern Manitoba, and minerals 
from the Ontario Radium Corporation properties. He has also made a 
large number of tests identifying rare-element minerals sent in by pros- 
pectors, and supplied information as to these occurrences. In addition, 
he spent some time revising and bringing up to date a report on Rare 
Element Minerals. 
During the year ended R. J. C. Fabry completed the analyses of the 
following rocks and minerals: 
Five rocks of granite type for Dr. T. T. Quirke: the Dead Island syenite, the Dokis 
granite, the Bekanon batholith, the Dunlop porphyry, and a diorite from Beef Tea 
Creek outlet. 
A massive ilmenite from Wolfe county, Que. 
An altered pyroxene from Glasgow pit, Canadian Asbestos Company, Black Lake, Que. 
Knebellite from Bluebell mine, Kootenay lake, B.C. 
Chromite from the Bennett-Martin claim, Ireland tp., Que. 
Chromite from Caribou chrome pit, Que. 
Stannite (partial analysis) from Snowflake mine, Albert canyon, B.C. 
Three sea-oozes, collected at the time of the Atlantic cable break off Newfoundland. 
