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James Ragwort (Senecio Jacobaea), which is associated with the cause of 
the disease.) Dept. of Agric. Can. (Health of Animals Branch). Special 
Report (J. G. Rutherford, Veterinary Director General)., pp. 19 with map; 
Ottawa, December, 1906. 
Picun, G. C. 
“Service des Agents Forestiers de la Province de Quebec.” Can. For. 
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Pictou ACADEMY. 
“The Erystphaceae of Pictou County.” (Podosphaera by John Cameron, 
Uncinula by Annetta Bishop, Microsphaera by Emily Spicer, and Emeline 
MacKenzie, Erysiphe by John Craigie, Phyllactinia by Mabel McKay and 
Jean Henry.) Bull. Pict. Acad. Sci. Ass’n. i, 4, pp. 51-58; Pictou, N.S., 
June, 1909. 
PRINCE, E. E. 
“Presidential Address. The Biological Investigation of Canadian Waters, 
with special Reference to the Government Biological Stations.” (Refer- 
ences to Botanical work.) Trans. Roy. Soc. Can. Ser. 3rd, i, Sec. iv, 5, 
pp. 71-92; Ottawa, 1907. 
RHEDER, ALFRED. 
“Some New or Little Known Forms of New England Trees.” (References 
to Canadian Species and habitats.) Rhodora ix, 103, pp. 109-117; Boston, 
July, 1907. 
REHDER, ALFRED. 
“The New England Species of Psedera.’’ (References to a Canadian 
species and habitat.) Rhodora x, 110, pp. 24-29; Boston, February, 1908. 
Rippie,8LINcoLN Ware. 
“Notes on lichens from the Gaspe peninsula,” (Quebec). Rhodora xi, 
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Rosrinson, B. L. | 
FERNALD, M. L. /f 
“Grey's New Manual of Botany. A Handbook of the Flowering Plants 
and Ferns of the Central and Northeastern States and adjacent Canada.” 
(Seventh Edition, illustrated, rearranged and extensively revised), 8vo., 
pp. 926, figs. 1036, New York, Am. Bk. Co., 1908, $2.50. 
