SCIENCE. 



New Sekies. 

 Vol. I. No. 1. 



Friday, January 4, 1895. 



Single Copies, 15 crs. 

 Annual Subscription, $5.00. 



The Popular 

 Science Monthly, 



For January. 



Pleasures of the Telescope. II. (Illus- 

 trated.) Bj- Gakkett p. Serviss. 

 Under the delightful guidance of Mr. Sen-iss ama- 

 teurs with small telescopes may view many of the 

 wonders that astronomere have discovered among the 

 constellations. 



Twenty-five Years of Preventive Medi= 

 cine. By Mrs. H. M. Plunkett. 

 A brief historj- of pulilic health work in this coun- 

 try, jxirticularly of its origin in Massachusetts. 



Studies of Childhood. V. By Professor 



J.VMES SX^LLY. 



In this paper Profe&sor Sully takes up the idea of 

 self, of the past, of God as an artificer, and others that 

 young philosophers puzzle over. 



On the Origin of Weeks and Sabbaths. 



By the late Colonel A. B. Ellis. 



Shows that the weeks of different lengtlis employed 

 by various peoples are all divisions of the lunar month, 

 and tliat among many moon-worshiping tribes sab- 

 baths at first occurred monthly. 



OTHER ARTICLES. 



Ethics ix Natctral Law ; Two Luxe. Tests i 

 School Ethics ; The Babometeic Measuke- 

 MENT OF Heights; Babies and Monkeys; Ani- 

 mal TiNCTUMUTANTS ; SCHOOLROOM VENTILA- 

 TION AS AN Investment ; Correl.a.tion in 

 Organic Growth ; Sketch of Denison Olm- 

 sted (with Portrait). 



Correspondence; Editor's Table; Literary No- 

 tices ; Poi'ULAB Miscellany ; Notes. 



SO Cts. a Number. $5.00 a Yeah. 



D. Appleton & Co., New York. 



Henry Holt & Co.'s 



Science Books. 



8@" All jtrioTi in thix list are to teaclieis lij mail. 



Recently Published. 



McMurricb's Invertebrate Morph- 

 ology, $4 26 



Hall's Elementary Physics (Gram- 

 mar Schools), ^o 



Bumpus' Invertebrate Zoology (Di- 



boratoiy ), i oS 



WoodbuU's First Course in Science 

 (Grammar Schools). 



Book of E.xperiments. Paper, 55 



Text Book. Cloth, yo 



Zimmerman 's Botanical Microtech- 

 nique, 2 65 



J. M, Baldwin's Elements of Psy- 

 chology, I 6x 



Falckenberg' s Modern Philosophy, 3 75 



American Science Series 

 For High Schools and Colleges. 



I. N'ewcomb's Astronomy. .i4(/rfmccd Ciouiw, . . .$2 23 



The Slime. Hrie/er Course, 1 24 



II. Packard's Zoiiloff}'. Advanced Course, 2 66 



The same. Briefer Course, 123 



The Siime. Elementary Course, 90 



III. Bessev's BotJinv. Advanced Oxirsc, 2 44 



Thewme. Briefer Course, 119 



An IntrortuotioD to Systematic Botany. (In Pre- 

 paration.) 



IV. Martin's The Human Bodv. Advanced Course, 246 



Thesame. lirie/er Course 182 



The same. I-Jfementarv Course 84 



The Human liody and the Effect of Narcotics,.. 1 SS 



V. Remsen's Chemi'str}'. Inorganic. Advanced 



Course, 8 08 



Thesame. II rie/er Course. Revised Edition, . 1 2o 



The same. Elementary Course, 89 



Laborator>- Manual. 12mo 46 



VI. Walker's Political Economy. Advanced Course, 2 21 



The same. Briefer Course, 1 33 



Thesame. Elementary Course 110 



VII. Sedgwick A Wilson's General Biology. Part I. 



Introductory, 175 



VIII. James' Piiychology. 2 vols. Advanced Oourte, 5 32 



Thesame. Briefer Course, 174 



IX. Barker's Physics. Advanced Course, 3 78 



X. Chamberliu A Salisbury's GeoIog>'. .Idvnneed 

 Ojurae. {In Preitaration.) 



Henry Holt & Co., 



29 West 23d Street, New York. 



