viii. Jour. Roy. Soc., Western Australia, Vol. XXVIII. 
ABSTRACT OF PEOCEEDINOS, 1941-1942 
8th July, 1941 — 
Annual General Meeting in Gleclclen Hall. Presidential Address: “Develop- 
ments in Optical Science/’ by Professor A. D. Ross, M.A., D.Sc. 
Royal Society’s Medal — Presentation of the Royal Society’s Medal by His 
Excellency the Lieutenant Governor, Sir James Mitchell, K.C.M.G., to 
Professor E. de C. Clarke, M.A. 
I 2th August, 1941 — 
Po/per — “The Petrology of Part of the Toodyay District,” by Dr. R. T. 
Prider. 
Talk — ■“Detection of Forest Fires,” by Mr, A. C. Shedly, M.Sc. 
9th September, 1941 — 
Paper — “The Occurrence of the Genus Conoclypus in the North-West Divi- 
sion, Western Australia,” by Irene Crespin, B.A., communicated by 
Professor E. de C. Clarke, M.A. 
“Insects and War,” by Mr. C. F. H. Jenkins, M.A. 
Exhibits — Dr. R. T. Prider exhibited specimens of gypsum crystals collected 
from the walls and roofs of old workings at Oroya North Blocks and 
Paringa Mines, Kalgoorlie. 
14th October, 1941 — 
Paper — “ Fibroferrite and Copiapite from Yetar Spring,” by Dr. R. T. 
Prider. 
Talk — ”How the Flour Mill Works,’’ by Dr. L. W, Samuel. 
llTPi November, 1941 — 
Talk — “Copper Deficiency Diseases in animals in the South-West,” by Dr. 
H. W. Bennetts. 
Exhibits — Mr. L. Glauert exhibited portions of a skull of the extinct mar- 
supial, JHprotodon. The specimen -was collected by Mr. L. L. Miller, 
of Warrawagine Station, Oakover River. 
9th December, 1941 — 
Papers — “Regeneration of Triodia pnngens, R.Br. after burning with special 
reference to ecological succession,” by Nancy Burbidge, B.Sc. (Hon.). 
“Revision of the Embioptera of Western Australia,” by Mr. Consett Davis, 
M.Sc., communicated by Mr. L. Glauert, B.A. 
10th IVIarch, 1942 — 
Papers — “Ecological Notes on the De Grey-Coongan Area with special refer- 
ence to Physiography,” by Nancy Burbidge, B.Sc. (Hon.). 
“Ecological Notes on the Vegetation of the 80-mile beach,” by Nancy Bur- 
bidge, B.Sc. (Hon.). 
Talk — “W.A. Stone Implements,” by Mr. H. V. V. Noone, M.R.A.I., 
M.R.A.S. 
Exhibits — Mr. A. Gibb Maitland exhibited some fine examples of New 
Guinea stone implements and drew attention to the different type of 
workmanship compared with the exhibits illustrating Mr. Noone ’s 
address. 
