liv 



Title Index 



r Nature, 

 \_Febtuary 2, 1924 



detecting Imperfections in Fruit, C. W. Mally, 256 ; 

 from Crystals ? Reflection of, Is there a change of 

 Wave-length on, G. E. M. Jauncey and C. H. Eckart, 

 325 ; Homogeneous, The Secondary Corpuscular 

 Rays produced by, H. Robinson, 778 ; Secondary, 

 The Study of the, M. Puthomme, 492 ; Soft, im- 

 mediate Changes observed in Tissue Cells after 

 Exposure to, while growing in vitro, T. S. P. Strange- 

 ways and H. E. H. Oakley, 26 ; The Diffusion of 

 the, and Bragg's Law, F. Wolfers, 747 ; The Physics 

 of the. Dr. G. W. C. Kaye, 125 ; The Practical 

 AppUcations of, Dr. G. W. C. Kaye, 277 



Yale University, Use of the Bequest of J. W. Sterling, 



920 

 Yarrow : Alfred, his Life and Work, compiled by Eleanor 



C. Barnes (Lady Yarrow), 199 ; Sir Alfred, Eng.- 



Vice-Adml. Sir G. G. Goodwin, 199 

 Yeast Extracts, Use of, in Diabetes, L. B. Winter and 



W. Smith, 205 

 Yerkes Observatory : Twenty-fifth Anniversary, 216 

 Young, Thomas, Oration of the Optical Society, Dr. 



M. von Rohr, 872 

 Young's Modulus and the Atomic Volume, The Relation 



between, A. Portevin, 674 

 Yunnan : North-west, Surveys in, 521 ; Percy Sladen 



Trust Expedition to. Zoological Results of the, under 



Prof. J. W. Gregory, in 1922. — DragonfUes, F. C. 

 Fraser, 527 



Zinc : Phosphorescent Sulphide of, A. A. Guntz, 460 ; 

 Sulphide, The Photochemical Reduction of, A. Job 

 and G. Emochwiller, 347 



Zoocecidies des plantes d'Afrique, d'Asie, et d'Oceanie, 

 Les, Prof. C. Houard. Tome I., Tome II., 433 



Zoological : Bibliography, T. Sheppard, 652, 794, 865 ; 

 Dr. F. A. Bather, 794 ; Nomenclature : Spirifer and 

 Syringothyris, Dr. C. W. Stiles, 473 ; Tribute, A, 

 Dr. W. G. N. van der Sleen, 496 



Zoologie fiir Studierende, Grundriss der allgemeinen. Dr. 

 A. Kiihn, 200 ; Handbuch der, eine Naturgeschichte 

 der Stamme des Tierreiches, Prof. W. Kiikenthal. 

 Herausgegeben von Dr. T. Krumbach. Erster Band. 

 Erste Lief., 649 



Zoology : and its Human Aspects, Prof. J. H. Ash worth, 

 420 ; Elementary, 126 ; Essentials of, for Students 

 of Medicine and First - Year Students of Science, 

 Prof. A. Meek, 126 ; Modern, Some Developments of. 

 Prof. J. H. Ashworth, 730 ; Some Bearings of, on 

 Human Welfare, Prof. J. H. Ashworth, 444 



Zuiderzee : Flora en Fauna der. Dr. H. C. Redeke and 

 others, 533 ; The Brackish-water Area of the. Dr. 

 W. G. N. van der Sleen, 533 



Zuurberg, Volcanic Rocks South of, S. H. Haughton and 

 . A. W. Rogers, 959 



Stipplements should be boujid wiiJi the mtnibers in which they appear. 



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