408 ' SGientific Intelligence, 



2. Puhlicatioiis of the Carnegie Institution of Washington. — ■ 

 Recent publications of the Carnegie Institution are noted in the 

 following list (continued from April, 1917, vol. xliii, pp. 341, 

 342) : 



No. 159. The Mosquitoes of North and Central America and 

 the West Indies; by Leland 0. Howard, Harrison G. Dyar, and 

 Frederick Knab. Volume IV. Systematic Description in two 

 parts. Part II. Pp. 1064. 



No. 175 (Vol. 3). Ocean Magnetic Observations 1915-1916 

 and Reports on Special Researches; by L, A. Bauer, with the 

 collaboration of AV. J. Peters and others. Pp. vii, 445 ; with 

 25 plates and 35 text figures. 



No. 208. A Concordance to the Poems of John Keats; by 

 Dane Lewis Baldwin and others. 4to. Pp. xxi, 437; with 

 portrait (frontispiece). 



No. 215. History of Transportation in the LMted States 

 before 1860; by Caroline E .MacGill and a staff of collabo- 

 rators, under the direction of B. H. Meyer. Pp. xi, 670. 



No. 226. Contributions to Embryology. 4to. Vol. VI. Nos. 

 15-19. Pp. 1-168, 21 pis., 24 text figs. Papers here included are 

 the following: by F. P. Mall on cyclopia in the human embryo; 

 by Madge DeG. Thurlow^ on mitochondria in nerve cells; by 

 Margaret R. LEwas on chick embryos; by Florence R. Sabin 

 on origin and development of primitive vessels of the chick and 

 pig ; by F. P. Johnson on a human embryo of twenty-four pair 

 of somites. 



No. 250. Ulugh Peg's Catalogue of Stars, Revised from all 

 Persian Manuscripts existing in Great Britain; with a vocabu- 

 lary of Persian and Arabic Words; by Edward Ball Knobel. 

 4to. Pp. 109. 



No. 251. Papers from the Department of Marine Biology; 

 Alfred G. Mayer, director. Vol. XL Pp. v, 360. Fourteen 

 articles are here included, illustrated by numerous plates and 

 text figures. 



3. Puhlications of the British 3Iuseum of Natural History. — 

 The following publications have been recently received: Eco- 

 nomic Series, No. 4; Mosquitoes and their relation to Disease; 

 their life-history, habits and control ; by F. W. Edward^. Pp. 

 20. No. 5, The Bed-Bug — Its habits and life-history and how 

 to deal with it; by Bruce F. Cummings. Pp. 20. No. 6, 

 Species of Arachnida and Myriopoda (scorpions, spiders, mites, 

 ticks and centipedes) injurious to Man; by Stanley Hirst. Pp. 

 60 ; with 26 text-figures and 3 plates. 



Instructions for Collectors: No. 1a. — Mammals. Part II, 

 Skeletons, with special notes on the collection of specimens of 

 Cetacea ; by S. F. Harmer. Pp. 8. No. 13. — Alcohol and Alco- 

 holometers ; by S. F. Harmer. Pp. 8. 



