[MacKay] bibliography OF CANADIAN BOTANY 45 



Penhaxlow, D. p. 



A Review of tihe "Status of the Mesozoic Floras of the United States" 

 by Lester F. AVard. (Coutaining references to the Triassic, Jurass'c, 

 Cretaceous, etc.. Floras of Western Canada, etc.). Science XXIIÎ 

 (593), pp. 737-7-41, 11 May, 1906, New York. 



Penhallow. D. p. 



" A Systematic Study of the Salicaceœ. " Amer. Nat., XXXIX, 1905, 

 pp. 509-535 and 797-838, (ill.). 



Penhallow, D. p. 



" Observations upon some Noteworthy Leaf-variations, and their Bearing 

 upon Palœontological Evidence. " Caji. Rec. Sci. IX, pp. 279-305. f. 

 1-11, 15 May, 1905, Montreal. 



Penhallow, D. P. 



" The Anatomical Changes in the Structure of the Vascular Cylinder in- 

 cident to the Hybridization of Catalpa. " Amer. Nat., XXXIX, 1905, 

 pp. 113-136, (ill.). 



Pex hallow, D. P. 



" The Mycelium of Dry Rot. " (Merulius lachrymans extending from 

 its nutrient support on woodwork about 3 yards along brickwork and 

 into moist anthracite coal in one of the McGill University buildings). 

 Can. Rec. Soc. IX, 6, p. 318, 15 May, 1905, Montreal. 



Tenh allow, D. p. 



"The Tussock Moth." (Feeding on Foliage of Trees). Can. Municip. 

 Journ. 1, April, 1905, p. 92, (ill.). 



Putman, J. H. 



"Ottawa Summer School for Teachers." (References to botanical 

 work). OttaAva Naturalist XIX, 6, pp. 127-129, Sept., 1905, Ottawa. 



ROBERTSOX, JAS. "W. 



" Evidence of the Commissioner of Agriculture and Dairying, Canada, 

 before Parliamentary Com. 1903." (On Improvement of Seeds and Seed- 

 Grains), pp. 1-29, 1904, Ottawa. 



ROBERTSON, JAS. W. 



" President's Address, Canadian Seed Growers' Association, 2nd Ann. 

 Rep. Conv. 1905. " (27th June, Ottawa) Can. Seed Grow. Ass'n. 

 Rep., 2nd Ann. Conv., pp. 18-21, 1905, Ottawa. 



Robertson, R. 



" Experimental Farm for the Maritime Provinces. " Experimental 

 Farms Rep., 1904, pp. 313-351. (Botanical information of Value). 

 King's Printer, Ottawa, 1905. 



Robinson, B. l. 



" A Well Marked species of Sparganium." (Sparganhim fluctuans ) 

 Rhodora VII, 75, p. 60, Mar. 1905, Boston. 



