100 v Scientific Intelligence. 



W. G. Leland. (Revised edition of Publication No. 14.) Pp. 

 xiii, 327. 



4. Maryland Weather Service ; Wm. JB. Clark, Director. 

 Volume II, pp. 515, with 169 figures and 24 plates. Baltimore, 

 1 907.— The first volume of the Maryland Weather Service^ issued 

 in 1899 (see vol. ix, 234), contained a general account of the phys- 

 iography and meteorology of the state. In the present work the 

 climatic features of the city of Baltimore are made the subject 

 of detailed study, this being based upon a series of observations 

 extending over a period of nearly a century. The systematic 

 thoroughness and minuteness with which Dr. O. L. Fassig has 

 gone into this subject, and the fulness with which the various 

 topics are illustrated by tables, figures and charts, makes the 

 volume, as a whole, almost unique in meteorological literature, 

 and gives it much more than a local interest. The introduction 

 (pp. 21-26), on the operations of the service, has been prepared 

 by the Director. 



5. The Apodous Holothurians. A Monograph of the Synap- 

 tidce and Molpadiidw ; by Hubert Lyman Clark. Smith- 

 sonian Contr. to Knowledge, vol. xxxv, 231 pages ; 13 plates. — 

 This is a very much needed and useful work on a group of holo- 

 thurians that is comparatively little known. All the genera and 

 species are described, the original descriptions and figures 

 being copied when authentic specimens were not available. 

 The anatomy and histology are given pretty fully in many cases. 

 It includes many new species, mostly from the deep seas, and 

 some new genera, as well as new limitations of old ones. There 

 is a full biblography and index. a. e. v. 



6. American Association for the Advancement of Science. — 

 The summer meeting of the American Association will be held at 

 Hanover, IN. H., from June 29 to July 4. The American Physical 

 Society will meet in conjunction with Section B. Various interest- 

 ing excursions, to the White Mountains and elsewhere, have 

 been arranged. 



7. International Catalogue of Periodicals. — Professor E. 

 Guarini has recently issued a catalogue of 4063 periodicals 

 classified by country and subject. MM. Dunod and Pinat, Paris, 

 are the publishers. 



Obituary. 



M. Albert Lapparent, the eminent French geologist, died in 

 May last at the age of sixty-seven years. 



Professor Karl August Mobius, Director of the Zoological 

 Museum at Berlin, died on April 26 at the age of eighty-three 

 years. 



M. Pierre J. A. Bechamp, the veteran French chemist, died 

 on April 15 at the age of ninety -two years. 



Dr. Robert Chalmers, of the Canadian Geological Survey, 

 died on April 9 at the age of seventy-four years. 



William A. Anthony, Prof essor emeritus of physics, electri- 

 cal and mechanical engineering at Cooper Union, New York 

 City, died on May 29 at the age of seventy-three years. 





