REPORT OF THE SOCIETY 129 



Grisdale, J.-H. Report of the Acting Dominion Botanist. Ann. Rept. Dom. 

 Exp. Farms for 1918-19191 57-61 1920. 



Gussow,H.T. Report of the Dominion Botanist. Ann. Rept. Div. of Bot. 

 any, Dom. Exp. Farms for 1921-1922: 1-73 3 Fig 1922— The annual report- 

 of the Division of Botany containing accounts of the various phases of investiga- 

 tive work carried on at the central and field laboratories Attention is drawn to 

 the sections dealing with potato inspection and certification, forest pathology, leaf 

 curl and mosaic of raspberries, and cereal rusts. 



Jackson, V. W., J. F. Higham and F. W. Bradbrooke. Control of Tagged 

 Wheat. Man. Agric. Ext. News 2\ 2. 1922. 



Lachaine, 0. W. Sclerotial Disease of the Potato, l^th Ann. Rept. Que. Soc. 

 Prot Plants for 1921-19221 105-109. Fig. 1-6 1922 



Major, T.-G. An Alternaria Disease of Polypodium. 14th Ann. Rept. Que. 

 Soc. Prot. Plants for 1921-19221 59-61. 1 fig. 1922.--A new species of ''Alter- 

 naria {A. polypodii) occurring on greenhouse ferns is described and its pathogenici- 

 ty demonstrated. 



McCallum, A. W. Abstracts of Canadian Plant Pathological Literature. 

 14th A7in. Rept. Que. Soc. Prot. Plants for 1921-1922: 110-115 1922. 



Newton, Margaret. Studies in Wheat Stem Rust. "{Puccinia Graminis Tri- 

 tici) Trans. Roy. Soc. Can. {3rd series, section 5). 16\ 153-210. Text fig. 

 1-3, pi. 1-6 1922 — Fourteen biologic forms of wheat stem rust have been shown to be 

 present in Western Canada and their distribution is provisionally given. All of 

 these forms also occur in the United States — Invariably, infection teas found to 

 occur by way of the stomata after an appressorium had been formed The suscep- 

 tible host adjusts itself readily to the presence of the parasite but in the resistant 

 species the hyphae sent out by the sub-stomatal vesicles soon die The sugges- 

 tion is made that the failure of the fungus to establish itself in a resistant plant may 

 be due to starvation caused by the death of the local host cells. 



Tice, C. Seed Potato Inspection and Certification in British Columbia. Sci. 

 Agric. 2\ 249-251. 1922. 



White, E. W Apple Tree Anthracnose or Black Spot Canker Control. Sci. 

 Agric. 2: 186-191. Fig. 1-3. 1922. — The results of co-operative experiments 

 extending over a number of years indicate that anthracnose which is very prevalent 

 and destructive in the coastal region of British Columbia can be controlled by syste- 

 matic spraying with' Bordeaux. 



