viii INDEX TO VOL. XIII 



PAGE 



Rideal, E. K., " Electrometallurgy " 497 



Robinson, J. J., " National Reconstruction " ...... 684 



Robbins, W. W., " Botany of Crop Plants " . . . - . . .676 

 Rose, W. N., "Mathematics for Engineers" 337 



Schuster, A., "Britain's Heritage of Science" 166 



Shapley, H., "The Dimensions of a Globular Cluster" .... 150 



„ „ "Globular Clusters and the Structure of the Galactic System " 150 



Singer, C, " Studies in the History and Method of Science " . . . 489 



Smallwood, W. M., " A Textbook of Biology " 679 



Smith, E. A., "The Zinc Industry" 328 



Smith, G. E., "Primitive Man" 335 



Sorensen, G. P. L., " Proteinstudier " 131 



Stejneger, B. L., and T. Barbour, "A Check List of North American 



Amphibians and Reptiles" , .681 



Teggart, F. J., "The Processes of History" 512 



Tilden, Sir W. A., "Sir William Ramsay, K.C.B., F.R.S." . . ..319 

 Tschappat, W. H., "Textbook of Ordnance and Gunnery" . . . 336 



Tull, R. S., "Organic Evolution" 162 



Tuttle, L., "The Theory of Measurements" 671 



Veblen, O., and J. W. Young, "Projective Geometry" .... 669 

 Vollenhoven, D. H. Th., " De Wijsbegeerte der Wiskunde von Theistisch 



Standpunt" 671 



Ward, H. B., and G. C. Whipple, "Fresh-water Biology" . . -334 

 Watson, E. R., "Colour in Relation to Chemical Constitution" . . 498 



Wells, H. G., "First and Last Things" 341 



Whetzel, H. H., "An Outline of the History of Phytopathology" . . 505 



Whiting, A. L., "Soil Biology" 160,505 



Whittaker, C. M., "Dyeing with Coal-Tar D yes tuffs " . . . .496 

 Wrightson, Sir T., "An Enquiry into the Analytical Mechanism of the 



Internal Ear" 666 



Woods, F. S., and F. H. Bailey, "Analytic Geometry and Calculus" . 322 



Young, S., " Stoichiometry " 324 



