Februarv 21, rSgo.J 



SCIENCE. 



SCIENCE CLUBBING RATES. 



105^ DISCOUNT 



We will allow the above discoi; 

 subscriber to Science who will s 

 order for periodicals exceeding Sio, count- 

 ing each at its full price. 





Agricultural Science 



American Agriculturist , 



American Architect and Building Ne 



Imperial edition 



Gelatine " 



Regular '' 



American Garden 



American Journal of Philology 



American Machinist 



American Naturalist- 



Andover Review 



Atlantic 



Babyhood 



Bradstreet's 



Building (weekly) 



Carpentry and Building 



Century Magazine 



Chautauqua "" 



Chri 



Unic 



Cosmopolitan. The 



The 



Eclectic Magazine 



Edinburgh Review 



Electrx Age 



Electrical World 



Electrician and Electrical Engineer 



Electrical Review 



Engineering and Mining Journal 



English Illustrated Magazine 



Forest and Stream 



Forum. 1 he 



Garden and Forest 



Harper's Bazar 



Harper's Magazine 



Harper's Weekly 



Harper's Younf People 



Illustrated London News (Amer, reprint). 



Independent, i he 



Iron Age (weekly) 



Journal of Philology (Eng.) 



Judge 



L'Art 



Life. 



Lippincott's Magazine 



Littell's Living Age 



London Quarterly 



Macmillan's Magazine 



Magazine of American History. 



Medical and Surgical Journal. 



Mechanical Engineer 



Metalworker 



Microscope, The 



Nature 



North American Review 



Outing 



Overland Monthly 



Political Science Quarterly 



Popular Science Monthly 



Popular Science News 



Portfolio, The , 



Practitioner 



Public Opinion 



Puck 



Puck (German) 



Quarterly Review (London) 



Queries 



St. Nicholas 



Scientific American 



Supplement 



Architect and Builders' editic 



Scribner's Magazine , 



Te.xas Siftings 



Trained Nurse 



J. GRUNOW 



sth Avenue, Ne 



Established 1852. 



Microscope Stands, 

 Oil Immersion Object- 

 ives and Abbe Con- 

 densers for Bacteria 

 and Histological work, 

 of Objectives, Camera 

 Lucida and other ac- 

 cessory apparatus. 



6.30 

 5.80 

 7.80 



Readers of Science 



Corresponding with or visiting Advertisen 

 will confer a great favor by mentioning the paper. 



LIFE-LORE: 



A MONTHLY MAGAZINE OF POPULAR BIOLOGY. 



The Siibjfct- Matter is LIFE-Life in all itsfor7ns, 

 plant and animal^ from the ■* lowest " to the *' high- 

 est^'' recent and extinct. The engravings and letter- 

 press are beautifully produced. 



Published by 



/. MAWER, at Essex Hall, Essex Stret 



Strand, London, W.C. 



Pos^f^©e for twelve months for 51. So, prepaid. 



NOTICES OF THE PRESS.. 



" We expect it will become fue of our most Im- 

 portant magazlues. "—ifah/a-r Courier. 



"We predict a career for Life-Lore worthy of its 

 h'gh tims and the ability it displays.'"— C't7;2en. 



"It Is handsomely printed ; the engravings are well 

 execuledj and the matter is excellent."— S^ncfard. 



" A model of what a popular soienliflc magazine 

 should, b a . . . gives signs of vigor and ttaylng 

 power."— jCi^erarz/ World. 



'^Exceedingly well got up. Tbe letterpress and 

 illustrations are in the best style of printer's and 

 wood engravers s.vi.^^~ Boston Guardian. 



"Bears e\idence that it means to be sound, as the 

 first numter undoubtedly is. . . We wish this con- 

 scientious venture success." — Bazaar. Exchange c& 

 Jldart. 



''A decided advarce upon the too often unscien- 

 tific popular Journals ot i s class. . . . We have 

 nothing but praise for this conscientious attempt." 

 —Staffordshire Advertiser. 



"Life-Lore is the lellcitous tlile of a new monthly 

 magazine of natural history which seems admirably 

 calculated to fill up a gap in our serial literature. 

 . . . . Kepleie witb intelligible instruction."— 

 Newcastle Daily Journal. 



"The first volume, which is before ue, contains 

 excellent papers and illustrations."— Grap/u'c. 



"Whilst far eclipsing its on© English rival In the 

 matter of beauty of type, illustration, ana paper, and 

 popularity of treatment. It Is marked editorially by 

 an unusually strong Qr\i>."— Bayswater Chronicle. 



Wants. 



A TEMPORARY BINDER 



for Science is now ready, and will be mailed 

 postpaid on receipt of i rice. 



Half Morocco - 7^ cents. 



This binder is strong, durable and 

 elegant, has gilt side-title, and allows 

 the opening of the pages perfectly 

 flat. Any number can be taken out 

 or replaced without disturbing the 

 others, and the papers are not muti- 

 lated for sub^eque^t permanent bind 

 ing. Filed in this binder, Science is 

 always convenient for reference. 



N. D. C. HODGES, 



47 Lafayette Place, New York. 



DO YOU INTEND TO BUILD? 



We offer an Atlas of Sensible L.o-\v Cost 



Houses, a portfilio UsU inchep, containing 

 liandsonie illustrations, floor plans, and full 

 detcriptions of this popular design, and fifty-four 

 other:-, ranging in cost from $800 to S7,200. This 

 specimen design is for a cottage with seven rooms, 

 and c- sting $1,100. It ccmbines beauty and comfort, 

 has two large porche^', and is a popular and practi- 

 cal workii g detigu, ha\ Ing been buiit sevei'al limes 

 for Its estimated cott. 



No matter what style of a house you may intend to 

 build, it will tay you to have this look. 



We will send this Atla", postpaid, on receipt of 

 prlcp. .$1 _y. u. C. Hodges. J? Lafayttte Place, New 

 York. 



Ajiy persoft seeking a f>osition for -which he is quali- 

 fied dy his scientific atfainmen^s, or any person seeking 

 some one io fill a position of this character^ be it thai 

 0/ a teacher 0/ science^ che?nist, draughtsman, or what 

 not. may have the ' Want'' inserted under this head 

 FREE OF COST, if he satisfies the piibiisher 0/ the suit- 

 able character 0/ his application. Any person seeking 

 information 07t any scientific question^ the address of 

 any scientific man^ or -who can in any way use this col- 

 umn for a purpose consonant luith the nature of the 

 paper^ is cordially invited to do so. 



WANTED— Hall's works on Palaeontol- 

 ogy, and other works giving plates 

 which show fossils of the Niagara Epoch. 

 Address M. D. Sullivan, St. Ignatius Col- 

 lege, Chicago, 111. 



WANTED— Set of Encyclopedia Britannica, 

 Scribner's edition, at a discount. R. T. Rob- 

 inson. .50 Pemberton St., North Cambridge, Mass. 



IS THERE any device at present in use for 

 grooming horses by electric power ? Is 

 there any power machine for cutting heavy 

 cloth in clothing manufactories, carpet 

 houses, etc.? Any reader having informa- 

 tion on these points would confer a favor by 

 addressing Mills, care of SciEXCE. 



WANTED.— In the Peekskill Military 

 Academy for Sept., 1890, an instructor 

 in chemistry, physics and mathematics. Ad- 

 dress, with full particulars, J. N. Tilden, 

 Peekskill, N. Y. 



A YOUNG MAN desires, about the 1st of 

 July, a position as laboratory assist- 

 ant, or as instructor in chemistry, physics, 

 and lesser mathematics. References as to 

 ability and character. 44 P.M. A. Address 

 R. L. Porter, Penn. Mil. Acad., Chester, 

 Pa. 



PRACTICAL CHEMIST, with 10 years' 

 experience in superintending manufac- 

 ture of oil of vitrol, fertilizers, acetic acid, 

 wood alcohol, etc., is open to an engagement. 

 Bestre fereuces. P. 0. Box 43, Edgewater, 

 Bergen Co., N. .J. 



AN M. S. GRADUATE of the University 

 of Illinois is open for an engagement as 

 teacher of the Natural Sciences. Biology a 

 specialty, in an Academy, Institute, or High 

 School. Three years' experience. Is a prac- 

 tical assayer and chemist. Good references. 

 Address G. C, care Sceenoe. 



WANTED. — A position in an Acadimy, 

 Normal or High School, as teacher of 

 the Natuial Sciences and Modern Languages. 

 Latin taught in addition if neces=ary. Address 

 G., Box 441, Ilani-ver. N.H. 



A YOU NO SCOTCHMAN desires an ap- 

 pointment in America. Three years in 

 English Government Office. Good references. 

 Address "Jack" care J. Lawson & Coy, 17 

 Princes St., Aberdeen, Scotland. 



I WILL ASSIST in photographic or optical 

 laboratory in n. turn for experience and con- 

 venience of ptrfecting oiiginal appliances. Ad- 

 dress E. C. Owen, c. re of Gibson & Simpson, 

 gi Adelaide Street East, Toronto, Canada. 



WANTED, — To correspond with concholo- 

 gists in America, especially in California, 

 with a view to txchange. Many British land, 

 fresh water, and marine duplicates ; some for- 

 eign. Address Jlrs. FALLOON, Long Ashton 

 Vicarage, Bristol, England. 



A YOUNG MAN can have lucrative engage- 

 ment, not only a fixed salary, but accord- 

 ing to his work accomplished in travelling for 

 SciENXE. A personal interview invited. 

 N. D. C. HODGES, 



47 Lafayette Place, New York. 



