CONTENTS TO VOLUME XL. 



Num'ber 235. 



Page 



Art. I. — Factors in Movements of the Strand Line and their 

 Results in the Pleistocene and Post-Pleistocene ; by 

 J. Barrell 1 



II. — Heat of Formation and Polymerization of some Oxides 

 and Determination of the Heat of Combination of Water 

 by Fusion with Sodium Peroxide ; by W. G. Mixter .. 23 



III. — A Study of the Relations existing between the Chemi- 

 cal, Optical and other Physical Properties of the Mem- 

 bers of the Garnet Group ; by W. E. Ford 33 



IV. — The ;Lower Ordovician (Tetragraptus Zone) at St. 

 John, New Brunswick, and the New Genus Protisto- 

 graptus ; by F. H. McLearn 49 



V. — A Study of the Recent Crinoids which are Congeneric 



with Fossil Species ; by A. H. Clark _ 60 



VI. — Relation between the Maximum and the Average Bathy- 

 metric Range, etc., in the Subfamilies and Higher Groups 

 of Recent Crinoids ; by A, H. Clark 67 



VII. — Separation of Potassium and Sodium by the Use of 

 Aniline Perchlorate and the Subsequent Estimation of 

 the Sodium ; by D. IT. Hill 75 



SCIENTIFIC INTELLIGENCE. 



Chemistry and Physics — Prput's Hypothesis, W. D. Harkins, 78. — Action of 

 Chloroform upon Metallic Sulphates : Explosives, A. Marshall : Chemical 

 Technology and Analysis of Oils, Fats, and Waxes, J. Lewkowitsch, 79. — 

 Annual Eeports on the Progress of Chemistry for 1914 : X-Ray Band Spec- 

 tra, E. Wagner, 80. — Elements of Optics, G. W. Parker : Dielectric Phe- 

 nomena in High Voltage Engineering, F. W. Peek, Jr., 82. — Eadium 

 Uranium Ratio in Carnotites, S. C. Lind and C. F. Whittemore, 83. 



Geology and Mineralogy — Climate and Evolution, W. D. Matthew, 83. — 

 Publications of the U. S. Geological Survey, G. 0. Smith, 85.— IT. S. 

 Bureau of Mines : Canada Department of Mines, 87. — Lavas of Hawaii, 

 W. Cross, 88. — Brief Notices of some Recently Described Minerals, 89. — 

 Amateur's Introduction to Crystallography, W. P. Beale : Die 32 kris- 

 tallographischen Symmetrieklassen und ihre einfachen Formen, E. A. 

 Wulfing: Annual Tables of Constants and Numerical Data, Chemical, 

 Physical and Technological, 91. 



Botany — Transpiration and the Ascent of Sap in Plant, H. H. Dixon, 91. — 

 Manual of Weeds, Ada E. Georgia : Plant-Breeding (Bailey), A. W. Gil- 

 bert, 92. — Fundamentals of Plant- Breeding, J. M. Coulter: Principles of 

 Fruit-growing, with Applications to Practice, L. H. Bailey, 93. 



Miscellaneous Scientific Intelligence — The Carnegie Foundation for the Ad- 

 vancement of Teaching ; Ninth Annual Report, H. S. Pritchett, 93. — 

 Publications of the Carnegie Institution of Washington : Crocker Land 

 Expedition, 94. — Spencer Fullerton Baird ; A Biography, etc., W. H. Dall, 

 95. — Publications of the British Museum of Natural History : Rumford 

 Medal of the American Academy of Arts and Sciences, 96. 



Obituary — A. H. Church : H. Muller : A. S. Stein, 96. 



