Miscellaneous Intelligence. 163 



considerable sums have been devoted to the new Geophysical 

 Laboratory, the Laboratory for Studies in Nutrition, and the 

 Solar Observatory. 



The Geophysical Laboratory, of which Dr. A. L. Day is 

 Director, was completed in June, 1907, at a cost of $100,000 for 

 the site and building, and $50,000 for its equipment. The build- 

 ing is located near the Bureau of Standards in Washington and 

 has been very carefully planned for the special kinds of research 

 for which it 'is intended. It presents some novel features : for 

 example, in its treatment of the problem of temperature it is so 

 arranged that investigators can carry on the work uninter- 

 ruptedly, without excessive discomfort, through the hot summer ; 

 this end is accomplished by an insulating layer of hollow terra 

 cotta about the exterior brick wall of the building. Special pro- 

 visions have also been adopted to prevent the disturbance due to 

 the heavy machinery belonging to the building. The Nutrition 

 Laboratory has been established in Boston, near the Harvard 

 Medical School, and also in the neighborhood of existing and 

 contemplated hospitals, so that the conditions will be as favor- 

 able as possible for researches in the physics, chemistry, and 

 pathology of nutrition. The cost for the building will be about 

 $100,000 ; it is to be commenced on February 1, and its comple- 

 tion is promised at an early date. The Solar Observatory, at 

 Mt. Wilson, has progressed favorably, notwithstanding the dif- 

 ficulties of the problems involved, and unfavorable local con- 

 ditions due to weather and labor. The erection of the 60-inch 

 reflecting telescope will be completed in the coming spring. 



In addition to the report of the Director, this volume contains 

 also interesting summaries of the results accomplished on the 

 various larger projects, prepared by the several gentlemen in 

 charge, and also abstracts of the work done in connection with 

 the numerous minor lines of investigation. 



The following list gives the titles of the publications of the 

 Institution received during the last few months (continued from 

 vol. xxiv, p. 382) : 



No. 43. Heliographic Positions of Sun-Spots Observed at 

 Hamilton College from 1860 to 1870; by C. H. F. Peters. 

 Edited for Publication by Edwin B. Frost. Pp. xiii, 189, 4to. 



No. 55. Revision of the Pelycosauria of North America ; by 

 E. B. Case. Pp. 176 with 35 plates and 74 figures, 4to. (Seep. 

 84.) 



No. 54 (Volume 2). Research in China. In three volumes 

 and Atlas. Volume Two. Systematic Geology; by Ba.il.ey 

 Willis. Pp. v, 133, 4to. 



No. 63. The Electrical Conductivity of Aqueous Solutions. 

 A Report presented by Arthur A. Noyes upon a Series of 

 Experimental Investigations executed by A. A. Noyes and others. 

 Pp. vi, 352, with 145 tables and 20 figures. 



No. 67. The Fauna of Mayfield's Cave; by Arthur M. 

 Banta. Pp. 114 with 13 figures. 



