280 



SCIENCE. 



[N. S. Vol. I. No. 10. 



done with a sapphire point, but in the fifth 

 century wheel-work begtas to appear. In 

 the sixth century B. C. cylinders begin to 

 be partially replaced by cone-shaped seals, 

 and by the scaraboid forms introduced from 

 Egypt. From the third century B. C. to 

 the third century A. D. the seals become 

 lower and flatter, and finally graduate into 

 rings, mostly with Persian or Sassanian 

 characters. Although in part made from 

 the stones of the neighboring hills, yet rarer 

 materials begin to appear — evidently ob- 

 tained by trade with Egypt and other coun- 

 tries more or less remote. 



In addition to the minerals mentioned 

 above, the following are recognized : clear, 

 pellucid quartz, amethyst, agates of various 

 colors, lapis-lazuli irom Bodakshan tu Tur- 

 kestan, amazon-stone, possibly of Egyptian 

 origin, calcite, green and white and iu the 

 form of various marbles, aragonite, gj'psum, 

 syenite and jade. 



It is hoped that further study may enable 

 us to trace these minerals to then- original 

 localities with greater certainty. 



J. F. Kemp, Recording Secretary. 



SCIENTIFIC JOURNALS. 



THE JOURNAL OF THE AMERICAN CHEMICAL 

 SOCIETY, MABCH. 



The Synthetic Food of the Future : Hakvey 

 W. Wiley. 



The Determination of Phosphoric Acid : H. 

 Pemberton, Jr. 



On the Estimation of Sulphur in Pyrites : G. 

 Lunge. 



Improvement in the Manufacture of Acetone: 

 E. R. Squibb. 



Report of Committee on Atomic Weights, Pub- 

 lished During 1894.: F. W. Clark. 



Coloring Matter in the California Red Wines : 



W. D. BiGELOW. 



The Penetration Machine — An Explanation: 



H. C. BOWEN. 

 Notes : Argon. 



AMERICAN JOURNAL OF PSYCHOLOGY, JAN. 



Comparative Ohservations on the Indirect Color 

 Range of Children, Adtdfs, and Adults Train- 

 ed in Color : Geo. W. A. Luckey. 



Minor Studies from the Psychological Laboratory 

 of Cornell University: TaMe Dreams: E. 

 B. Titchexer. On the Quantitative Deter- 

 mination of an Optical Illusion : R. Wata- 

 NABE, Ph. D. The Ctdaneous Estimation of 

 Open and Filled Sjmce : C. S. Parrish. 



The Daily Life of a Protozoan; A Study in 

 Comparative Psycho-physiology : C F. Hodge, 

 Ph. D., and H. Austin Aikins, Ph. D. 



Minor Studies from the Psychological Laboratory 

 of Clark University : A Study of Individual 

 Psychology: Caroline Miles. The Mem- 

 ory After-image and Attention : Arthur H. 

 Daniels, Ph. T>. On the Least Observable 

 Interval between Stimidi addressed to Dis- 

 parate Senses and to Different Organs of the 

 Same Sense : Alice J. Hamlin. Notes on 

 New Apparatus : Edmund C. Sanford. 



On the Words for ' Anger ' in Certain Lan- 

 guages ; A Study in Linguistic Psychology: 

 A. F. Chamberlain, Ph. D. 



A Laboratory Course in Physiological Psychol- 

 ogy ; The Visual Perception of Space : Ed- 

 mund C. Sanford. 



Proceedings of the Third Annual Meeting of 

 the American Psychological Association at 

 Princeton. 



Psychological Literature. 



NEW BOOKS. 



History of Chemistry. F. P. Venable. Bos- 

 ton, D. C. Heath & Co. 1894. Pp. viii 

 + 157. 



Mental Development of the Child and the Race. 

 Methods and Processes. James IVIaek 

 Baldwin. New York and London, Mac- 

 millan&Co. 1895. Pp. xvi+496. $2.60. 



Qualitative Chemical Analysis of Inorganic 

 Substances as Practiced in Georgetown Col- 

 lege, D. C. New York, Cincinnati, Chi- 

 cago, American Book Company. 1894, 

 Pp. 61. 



