402 Scientific Intelligence. 



Gifford Pinchot : The work of the Division of Forestry, Department of Agri- 

 culture. 



H. S. Pritchett: The resulting differences between the astronomic and geo- 

 detic latitudes and longitudes in the triangulation along the Thirty-ninth Parallel. 



A. Graham Bell: On the development by selection of supernumerary mam- 

 mae in sheep. On kites with radial wings. 



S. Newcomb: Remarks on the Work of the Nautical Almanac Office during the 

 years 1871-98 in the field of Theoretical Astronomy. 



W. K. Brooks and L. B. Griffin : Exhibition of specimens of Nautilus pom- 

 pilius. 



The third memoir of volume viii of the Memoirs of the 

 Academy has recently been issued. The title of the paper is : 

 General perturbations of Minerva (93), by Jupiter, including 

 terms only of the first order with respect to the mass, together 

 with a correction of the elements, by W. S. Eichelberger, Ph.D. 



2. Annual Report of the Board of Regents of the Smithsonian 

 Institution, to July, 1897 ; pp. xlvii, 686. Washington, 1898. — 

 The Report of the U. S. Natural History Museum, under the 

 direction of the Smithsonian Institution, for 1896, was noticed in 

 the last number, and we have now issued the Smithsonian Report 

 for 1897. The early portion of this is devoted to an account of 

 administrative matters, by the Secretary, Professor S. P. Langley. 

 This occupies some eighty pages. The remainder of the volume, 

 or General Appendix, contains reprints of a well-selected series 

 of papers on a very wide range of subjects; these include 

 memoirs on astronomy, physics (X-rays, etc.), chemistry and so 

 on through to archaeology. The volume closes with an obituary 

 notice of George Brown Goode by S. P. Langley, and one of 

 Francis Amasa Walker by G. F. Hoar and C. D. Wright. 



3. Harpers Scientific Series. — The recent additions to the 

 series of Harper's scientific memoirs include Volume III, on 

 Rontgen Rays, edited by Professor George F. Barker of 

 Philadelphia, and Volume IV, on the Modern Theory of Solution, 

 edited by Dr. Harry C. Jones of Johns Hopkins University. 

 The first of these contains the original paper by Rontgen, and 

 also others by Stokes and J. J. Thomson. Each of the papers is 

 followed by a biographical sketch of the author, and the bibli- 

 ography of the subject is added at the end. This subject is one 

 of very great interest at the present time, and indeed this state- 

 ment may also be made about Volume IV on the Theory of Solu- 

 tion. This latter contains papers by Pfeffer, Van 't HotT, 

 Arrhenius, and Raoult, with the usual useful editorial matter. 



OBITUARY. 



Dr. Gustav Wiedemann, the distinguished physicist, for 

 twenty-two years (1877-1899) editor of the Annalen der Physik 

 und Chemie, died on March 23 at the age of seventy-three. 



