64 



NATURE 



[September 12, 1912 



ence was easy. — Rev. Fr. Nicholas Krick : Account of 

 an expedition among the Abors in 1853. The recent 

 expedition among the Abors gives renewed interest to 

 Fr. Krick's visit to them in 1853. His "Relation d'un 

 voyage au Thibet en 1852 et d'un voyage chez les 

 Abors en 1853" (Paris, 1854) has become scarce; 

 hence we are under obligations to Rev. Fr. A. Gille, 

 S.J., for having translated that part which concerns 

 the Abors. Fr. Krick's remarks on their manners and 

 customs are as applicable to-day as they were nearly 

 sixty years ago. 



BOOKS RECEIVED. 



Catalogue General des Antiquites Egyptiennes du 

 Musee du Caire. Nos. 61051-61100: The Royal 

 Mummies. By Prof. G. Elliot Smith. Pp. vii+ii8 + 

 103 plates. (Le Caire : Imprimerie de I'lnstltut 

 Frangais.) 



Eine physiologische Histologic des Menschen- und 

 Saiigetier-Korpers im Wort-Bild und Praparat. By 

 Prof. F. Sigmund. Lief, i., Die Haut. Zweite verbes- 

 serte Auflage. Pp. 38. (Stuttgart.) 9.50 marks. 



Kreislaufvorgange in der Erdgeschichte. By Prof. 

 G. Linck. Pp. iii + 40. (Jena: G. Fischer.) 1.50 

 marks. 



A Critical Revision of the Genus Eucalvptus. By 

 T. H. Maiden. Vol. ii., part 5. (Svdney : W. A. 

 Gullick.) 2s. 6d. 



Elementary Entomology. By E. D. Sanderson and 

 Prof. C. F. Jackson. Pp. vii + 372. (London : Ginn 

 and Co.) 8x. 6d. 



A Text-Book of Botany. By Profs. E. Strasburger, 

 H. Srhenck, L. Jost, and G. Karsten. Fourth Eng- 

 lish Edition, revised with the tenth German edition, 

 by Dr. W. H. Lang. Pp. xi-l-767. (London: Mac- 

 millan and Co., Ltd.) i8s. net. 



A Text-book of Pathology. By Drs. J. G. Adami 

 and J. McCrae. Pp. x 4-759. (London: Macmillan 

 and Co., Ltd.) 255. net. 



A Hand-list of the Lichens of Great Britain, Ireland, 

 and the Channel Islands. By A. R. Horwood. Pp. 

 45. (London : Dulau and Co., Ltd.) is. net. 



The People's Books : — Practical Astronomy with 

 the Unaided Eye. By H. Macpherson, jun. Pp. 94. 

 Theosophy. By Annie Besant. Pp. 94. Rudolf 

 Kucken : a Philosophy of Life. By Dr. A. J. Jones. 

 Pp. 94. Dietetics. By Dr. A. Bryce. Pp. 94. Aris- 

 totle. By Dr. A. E. Taylor. Pp. qi. Aviation : its 

 Principles, its Present and Future. By S. F. Walker. 

 Pp. 96. The Evolution of Living Organisms. By 

 E. S. Goodrich. Pp. 108. Embryologv : the Begin- 

 nings of Life. Bv Dr. G. Leighton. Pp. 02. (Lon- 

 don and Edinburgh : T. C. and E. C. Jack.) 6d. net 

 each. 



Dactylography, or the Study of Finger-prints. By 

 H. Faulds. Pp. 127. (Halifax : Milner and Co.) i*-. 

 nr-t. 



Fortschritte der naturwlssenschaftlichen Forschung. 

 By Prof. E. Abderhalden. Serhster Band. Pp. iii + 

 -ioo. (Berlin and Vienna : Urban and Schwarzen- 

 berg.) I mark. 



The People's Medical Guide. Bv Dr. T. Grimshnw. 

 Pp. XX + 830. (London : J. and A.' Churchill.') Ss. 6d. 

 net. 



Analylirni Geometry. By C. O. Tuckev and W. A. 

 Nayler. Pp. xiv4-367. (Cambridge Universitv Press.) 

 SS. net. 



Examples in .applied Electricity. Bv C. G. Lamb. 

 Pp. iv + fii. (Cambridge L^niversitv Press.) 2,t. 6d. 

 net. 



The Building of the Alps. Bv Prof. T. G. Bonnev. 

 Pp. 384. (London : T. F. Unwin.) 12.9. 6d. net. ' 



Das Gesetz der ^^'ustenbiklung in Gegenwart und 

 NO. 2237, VOL. 90] 



Vorzeit. By Prof. J. Walther. Zweite Auflage. 

 Pp. XV 4- 342. (Leipzig : Quelle and Meyer.) 12 marks. 



Chemical Theory and Calculations. By Drs. F. J. 

 Wilson and I. M. Heilbron. Pp. iv4- 138. (London : 

 Constable and Co., Ltd.) 2S. 6d. net. 



The Lushei Kuki Clans. By Lieut. -Col. J. Shake- 

 spear. Pp. .xxii4-25o. (London: Macmillan and Co., 

 Ltd.) JOS. net. 



From the Black Mountain to Waziristan. Being an 

 account of the Border Countries and the more turbu- 

 lent of the Tribes controlled by the North-west 

 Frontier Province, and our Militarv Relations with 

 them in the East. By Col. H. C. Wylly. Pp. xx + 

 505 + 8 maps. (London: Macmillan and Co., Ltd.) 

 los. 6d. net. 



A Preparatory .\ritlimetic. By C. Pendleburj'. Pp. 

 xiv+ 185-I-XXX. (London: G. Bell and Sons, Ltd.) 

 15. 6d. 



Man's Place in the Universe. By Dr. A. R. 

 Wallace, O.M. New and cheaper edition. Pp. vi + 

 283. (London : Chapman and Hall, Ltd.) is. net. 



Nature Photography. By S. C. Johnson. Pp. 115. 

 (London : Hazell, Watson and Viney, Ltd.) is. net. 



Contributions from the Jefferson Physical Labora- 

 tory of Harvard University for the Year 191 1. Vol. ix. 

 (Cambridge. Mass., U.S.A.) 



Palseolithic Man and Terramara Settlements in 

 Europe. By Dr. R. Munro. Pp. xxiii4-5o74-75 

 plates. (Edinburgh : Oliver and Boyd ; London : 

 Gurney and Jackson.) 16s. net. 



CONTENTS. PAGE 



Thermodynamics of the Atmosphere 31 



The Story of "Eight Deer" 32 



Submerged River-valleys 32 



Our Bookshelf 33 



Letters to the Editor: — 



Practical Mathematics.— Prof. John Perry, F.R.S. 34 

 Polymorphism in a Group of Mimetic Butterflies of 

 the Ethiopian Nymphaline Genus Pseudacrxa. — 



Prof. E. B. Poulton, F.R.S 36 



Wireless Telegraphy and Terrestrial Magnetism. — Dr. 



C. Chree, F..H.S 37 



On the Structure of the Stromatoporoid Skeleton, and 



on Eozoon. — R. Kirkpatrick 37 



The Striation of Stones in Boulder Clay.— Prof. 



Granville A. J. Cole . . 37 



Boulder Clay in Essex.— J. Reid Moir 38 



The 7>V,7;;/<.— Rev. Dr. A. Irving 38 



Studies of Aurora, (IHiislrafcd.) By Dr. C. Chree, 



F.R.S 38 



Prof. Thomas Winter 40 



The British Association at Dundee. By Prof. John 



Perry, F.R.S 41 



Section B. — Chemistry. — Opening Address by Prof. 

 A. Senier, Ph.D., M.D., D.Sc , President of 



the Section 43 



Section C.-CieoloHv.— Opening Address by B. N. 

 Peach, LL.D.,' F.R.S., President of the 



Section 49 



Notes S(> 



Our Astronomical Column : — 



Discovery of a Comet t^o 



The Markings of lupiter ... 60 



Observations of Nova Geminorum No. 2 60 



The Orbit of| Persei 60 



Catalogue of Stellar P.irallaxes 60 



The Orbits of Comets 60 



American Mineral Statistics. By H. L 61 



Income of American Colleges of University Rank 61 



University and Educational Intelligence 62 



Societies and Academies 63 



Books Received 64 



