R. FRIEDLANDER & SOHN, 



BERLIN, W. H. 6 

 JUST PUBLISHED 



Nomenclator animalium geoerum 

 et subgenerum 



Specimen-Part 



Primatium genera et subgenera 



Im Auftrage der k. PreuBS. Akademie der Wissen- 

 ■chaften fur Berlin heransgegeben von 



Fr. E. SCHULZE 



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17 pp. Royal 8vo, $0.25 



Price of the Nomenclator 



2 Vols, when complete, $24 



Prospectus sent on application 



The Eugeniea and Biometric Laboratoritt 



UniT«r8ity College, London, have recently issued 

 the foUo^ving : 



A Konograph on Albinism in Man. By Kabl Peabsok, 

 E. Nettleship, and C. H. Ushkk. Text, Part I. and 

 Atlas Part I, with 62 Plates containing 185 Illustrations of 

 Albinism, Piebaldism, and Leucodenna. Price, 35b net. 



The Treasury of Human Inheritance. Parts V and VL 

 Haemophilia. By William Bulloch, M.D., and Paul 

 FiLDES, M.B., B.C. With 17 plates containing 236 Pedi- 

 grees, 1 Plate of Illustration, a Bibliography of 911 Title? 

 and critical discussion. Price, 158 net. 



A Third Study of the Statistics of Pulmonary Tuber- 

 culosis: The Mortality of the Tuberculous and 

 Sanatorium Treatment. By w. Palin Eldjcrton. 

 F.I.A., and 8. J. Perey, ALA. Price, 38 net. 



The Academic Aspect of the Science of National Eu- 

 genics. By Karl Pearson, F.R.S. Price, Is net. 



A First Study of the Influence of Parental Alcoholisn' 

 on the Physique and Intelligence of the Offspring 

 By Ethel M. Eldkrton, Galton Eesearch Schola 

 assisted by Kael Pbarson, F.R.S. Second Editioi 

 Price, 48 net. 



A Second Study of the Influence of Parental Alcohol- 

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A Preliminary Study of Extreme Alcoholism In Adults. 

 By Amy Harrington and Karl Pearson, F.R.S., assisted 

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Supplement to the Memoir entitled "The Influence of 

 Parental Alcoholism on the Physique and Intel- 

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Mental Defect, Mal-Nutrition, and the Teachers' Ap- 

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The ftboTe may be obtained from 

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Waves of the Sea and other 



Water Waves 



By VAUGHAN CORNISH, 



Doctor of Science, Manchester University 



Fifty illustrations from photographs taken by the author. Cloth, pp. 375. Price, $2. 50 net. 



A critical examination of observations and measurements of waves and the discovery of the mode of their 

 production. The facts here set down in a very interesting manner are the results of fifteen years' study of 

 wave action in lakes and rivers as well as upon the ocean at different latitudes. 



A few of the topics ably presented are : — 



SIZE and SPEED of DEEP SEA WAVES ; the numerical relation between length of fetch of wind and 

 height of storm waves ; the wave length of the swell which reaches shores after storms : the give and 

 take between air and water in the development of waves ; the effect of squalls and gusts upon waves. 



On the action of sea. loaves to transport shingle, sand and mud. The building up of beaches — the undertow. 



Stationary and progressive lua'oes in rivers, flood wave*, tidal bores, orose-stream progressive waves, sounds 

 of running water, the gushing 

 motion of cataracts, whirls and 

 eddies, conical structures pro- 

 duced by the breaking up of a 

 waterfall, the wave track of a 

 ship. 



This book offers an attractive 

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 the study of more difficult wave 

 phenomena in earthquakes, atmo- 

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 wave action in relation to engi- 

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