LIST OF PLATES 



Secretary's Report: Page 



Plates 1, 2 44 



Galaxies (Shapley): 



Plates 1, 2 ._ 144 



Solar radiation and the state of the atmosphere (Stetson) : 



Plates 1-4 172 



The sun and the earth's magnetic field (Fleming) : 



Plates 1-19 208 



Meteorites and their metallic constituents (Henderson and Perry) : 



Plates 1-6 252 



Chemical properties of viruses (Stanley) : 



Plates 1-6 272 



Industrial development of synthetic vitamins (Major) : 



Plate 1 288 



The return of the musk ox (Young) : 



Plates 1-6. _ 322 



Insect enemies of our cereal crops (Packard) : 



Plates 1-19 338 



The bromeliads of Brazil (Foster) : 



Plates 1-10 366 



Canada's Indian problems (Jenness) : 



Plates 1-4 380 



Dakar and the other Cape Verde settlements (Whittlesey) : 



Plates 1-4 _ 408 



vn 



