Miscellaneous Intelligence. 469 



A. Hall : Eelation of the true anomalies in a parabola and a very eccen- 

 tric ellipse having the same perihelion distance. 



S. L. Penfield : On a new mineral from Borax Lake, California. 



F. E. Beach : On errors of excentricity and collimation in the human eye. 



C. S. Peirce : The relation of betweenness and Eoyce's O-collections. 



L. P. Wheeler : Some problems in metallic reflection. 



Franz Boas : On Pearson's formulas of skew distribution of variates. 



A. Agassiz : On the variation in the spines of sea urchins. 



W. H. Brewer : Further observations on sedimentation. 



H. A. Bumstead : The effect of Bontgen rays on certain metals. 



Recent publications of the Academy are as follows : 



Memoirs, Vol. IX. — Monograph of the Bombycine Moths of 

 North America, including their Transformations and Origin of 

 the Larval Markings and Armature. Part II, Family Cerato- 

 campidae, Subfamily Ceratocampinse ; by Alphetjs Spring 

 Packard. 149 pp., 61 plates, in part colored. 



Vol. X, No. 1. — The Absolute Value of the Acceleration of 

 Gravity determined by the Ring-Pendulum Method ; by Charles 

 E. Mexdenhall. Pp. 1-23, 3 plates. 



No. 2. — Claytonia Gronov, a Morphological and Anatomical 

 Study; by Theodore Holm. Pp. 25-37, 2 plates. 



No. 3. — A Research upon the Action of Alcohol upon the Cir- 

 culation ; by Horatio C. Wood and Daniel M. Hoyt. Pp. 

 39-68, 3 plates. 



2. The Geological Society of America. — The eighteenth win- 

 ter meeting of the Geological Society will be held at Ottawa, 

 Dec. 27-2 9, in the House of Commons Building ; this is by invi- 

 tation of the Logan Club of the Geological Survey of Canada. 

 President R. Pumpelly will preside. The Cordilleran Section of 

 the Society will meet at Berkeley, Cal., Dec. 29, 30. 



3. A Laboratory Guide in Bacteriology ; by Paul G. Heine- 

 mann. 143 pp. 1905 (The University of Chicago Press). — This 

 little manual of 143 pages contains clear and concise directions 

 for a thorough course of laboratory work in the subject, includ- 

 ing the preparation of culture and staining media and the col- 

 lection, isolation, and method of studying the different groups of 

 bacteria. The course, as outlined, is that pursued by the medical 

 students of the University of Chicago. There are descriptions 

 and illustrations of practically every piece of apparatus used in 

 the laboratory. Between each two pages is a blank sheet for 

 notes and additions to the text. w. r. c. 



4. British Tunieata; by Alder and Hancock, edited by 

 the Secretary of the Ray Society. Vol. I. Ray Society, 1905. 

 Pp. 146, with 20 plates. — This long delayed monograph, that was 

 begun in 1855, has now made its appearance, more than thirty 

 years after the death of both the authors. The entire work will 

 be completed in three volumes and will contain descriptions and 

 colored illustrations of all the British tunicates known up to the 

 year 1873. The present volume contains a general account of 

 the anatomy, physiology and relationships of the class Tunieata, 

 together with extended specific descriptions of the thirty indige- 



