FROM MESSRS. CONSTABI 



The Sea Fisheries, j i i Ph.D, \ 



245. net. Very fully Illustrated. 



CONTENTS. Statistical Methods. The Collection of Statistics. Methods of 



Fishing. The Trawling. Grounds. Consideration of Individual I ish. 'I 



of the Herring Fisheries. The Development of Steam Trawl: 



and the Sea Fisheries. The Inshore Fisheries. Public Fislu-: 



The Education of Fisherman. Science and the Sea Fisheries. State; Aid and 



Fishery Research. Foreign and Colonial Fisheries and their Administer 



The CuTVeS of Life. Being an Account of Spiral Formations 

 and their Application to Growth in Nature, to Science, and to Art. 

 Sir THEODORE ANDREA COOK, M.A., F.S.A. 415 Illustrations and 

 ii Plates. Royal 8vo. 47o + xxxii pages. 125. 6d. net. 



Clouds. A Descriptive Illustrated Guidebook to the Observation 

 and Classification of Clouds. By GEORGE AUBOURNE CLARKK, 

 F.R.P.S., F.R.Met.Soc. With a Preface by Sir NAI-IKR SHAW. 

 LL.D., Sc.D., F.R.S., Director of the Meteorological Office. Demy 

 8vo. 148 pp. Illustrated. 2 is. net. 



The GyrOSCOpic CompaSS. ("The Engineer" Library.) 

 T. W. CHALMERS, B.Sc., etc. Demy 8vo. Fully Illustrated, 

 us. net. 



Introduction. Gyroscopic Phenomena. Gyroscope and the Rotation of the 

 Earth. Damping Vibrations of the Gyro. Anschiitz, Sperry, and Brown 

 Compasses. Errors and Deflections and their Elimination. Centrifugal Forces 

 during Quadrantal Rolling. Descriptions of the Anschiitz, Sperry, and Brown 

 Compasses. 



From NeWtOn tO Einstein. Changing Conceptions of the 

 Universe. By BENJAMIN HARROW, Ph.D. Foolscap 8vo. Paper. 

 2S. 6d. net. 



Einstein's contributions to our ideas of time and space and to our knowledge of 

 the universe in general must rank among the greatest achievements of the 

 twentieth century. This little book gives a concise and lucid account of Kinstein's 

 discoveries, but since these are so largely dependent on the work of Ncu 

 his successors, the first two chapters are devoted to the latter. 



