Miscellaneous Intelligence. 83 



tions made from it, with numerous illustrations, is given by H. 

 Maurice. Some of the results have already been published in 

 this country (see vol. xxiii, 398), but it may be worth while to 

 quote here the resume given by H. H. Clayton. 



(1) The observations show, in the zone of the trade winds, a 

 rapid diminution of temperature with adiabatic gradient from 

 the sea-level to a height of some hundreds of meters. 



(2) A layer, some hundreds of meters in thickness, where the 

 temperature increases with the height ; this commences with an 

 altitude varying from 400 to 1500 meters. 



(3) A lowering of the layer of inverse gradient from latitude 

 40° to latitude 20°, or even farther south, suggesting a descend- 

 ing movement of the air from 40° towards the equator above the 

 inverse gradient. 



(4) A maximum of temperature near the surface between lati- 

 tudes 5° and 10° N. in summer, and a second maximum much 

 farther north at a height of about one thousand meters. 



(5) Finally, a progressive movement towards the north of the 

 maximum of the upper atmosphere from about 15° N. in May to 

 30° N. of the area of the high pressures of the Atlantic during the 

 same period. 



10. Science Progress in the Twentieth Century. Vol. V, No. 

 19, January, 1911. Editors: H. E. Armstrong, J. Bretland 

 Parmer, W. G. Freeman. Pp. iv, 345-528. London, 1911 

 (John Murray). — This quarterly presents in each issue some eight 

 or ten articles dealing with the prominent scientific problems of 

 the times. The names of the editors and the members of the 

 advisory committee are sufficient guarantee for the excellence of 

 the work. A journal of this character is of much value in 

 presenting subjects of the first importance in a form at once 

 interesting and attractive to the general public. 



11. Science from an Easy Chair; by Sir Rat Lankester. 

 Pp. xiii, 423 ; 2 plates, 82 text figures. New York, 1911 (The 

 Macmillan Company). — The papers, forty-three in number, which 

 make up this volume have been collected from the Daily Tele- 

 graph, in which they appeared during the years 1908 and 1909. 

 The subjects with which they deal are so varied in character, and 

 of such general interest, that the delightful presentation of them 

 here is a service to the public which cannot fail to be appreciated. 

 We pass from the Darwinian theory to a discussion of dragons, 

 imaginary and real, from tadpoles and frogs to comets and the 

 men of the Neandertal. In other words, the subjects of the 

 successive chapters are most varied, but all are of interest and 

 numerous illustrations add to the value of the volume. The title- 

 page is an admirable reproduction, from original water-color 

 drawings, of the head of immature and mature specimens of the 

 common eel, natural size. Other volumes of this series are 

 planned. 



12. Die Constitution der Protistenkerne unci ihre Bedeutung 

 fur die Zellenlehre ; by Prof. Dr. Max Hartmann, Privatdozent 

 in Zoology, University of Berlin. Pp. vi, 54 ; 13 text figures. 



