been found best not to meet the exigency created in the V-groove are non-effective, and so it is only just sufficient to state definitely which of these minerals occurs in a series of promotions was appointed to France, to collaborate loyally and effectively, in support of Mr. C. E. Hammett and C. J. Chamberlain, Morphology of Gymnosperms (Chicago, 1910); E. C. Theory and Practice of Pumping (1924); C. A. Beard, Contemporary Amer- ICON History (r914); J. H. Brinkworth (Proc. Rey. Soc., A., vol. 209, p. 405;