loo 



SCIENCE. 



CALENDAR OF SOCIETIES. 



Philosophical Society, Washington. 



Feb. 1. — C. Hart Merriam, General Re- 

 sults of a Biological Survey of the San 

 Francisco Mountain Region in Arizona ; B. 

 E. Ferrow, Forest Influences on Water 

 Supplies. 



Boston Society of Natural History. 

 Feb. 5, — F. W. Putnam, Early Man in 

 America; S. H. Scuclder, Remarks on a 

 Small Collection of Beetles from the Inter- 

 glacial Clays of Scarboro' , Ontario. 



Exchanges 



[Free of charge to all, if of satisfactory character. 

 Address N. D. C. Hodges, 47 Lafayette Place, New 

 York.l 



Wanted — Books and journals, American or foreign, 

 relating to Photography — exchjinge or purchase. C. W. 

 Canfield, 1.321 Broadway, New York. 



Wanted. — Marine univalves of the west coast, from U. 

 S. line southward, and from Pacific Is'ands, offered; ex- 

 change from a general collection. — F. C. Browne, Fram- 

 ingham, Mass.. Box 50. 



D. E. Willard, Curator of the Museum, Albion Acad- 

 emy, Albion, Wis, will answer all his correspondence as 

 soon as possible. Sickness and death in the family, with 

 many other matters, have prevented his answering as 



promptly ; 

 I will give ] 



should have done. 



) good arrow heads for a fine pair of wild 

 cattle horns at least two feet long. Jf you have shorter 

 or other horns write me, and al>o how many arrow heads 

 you want for them. I will also exchange shells, minerals 

 and arrows. W. F. Lerch, 30S East 4th St , Davenport, 



I wish to^ purchase Vol. 7 of the American Cheittical 

 Journal^ either bound or unbound. State price. Ad- 

 dress, Wm. L, Dudley, Vanderbilt University, Nashville, 

 Tenn 



A few duplicates of Murex radix ^ M. rajnosus^ M. 

 brandarts. Cassis ru/a^ Harpa ventricosa, Oliva tri- 

 aiula, O. reticularis, Chlorostoma funebrale^ Cyprcea 

 caput serpentis^ C. iynx, Lottia gigantea^ Acmola 

 Patina, Chama spi7tosa, and some thirty other species, 

 for exchange for shells not in our collection. List on ap- 

 plication. — Curator Museum, Polytechnic Society, Lou- 

 isville, Ky. 



Photographs and Stereoscopic views of Aborigines of 

 any country, and fine landscapes,etc.,wanted in exchange 

 for minerals and fossils. — L. L. Lewis, Copenhagen. 

 New York. ' 



_ Droysen's Alg^meiner Hisioricher Hand-atlas (Leip- 

 zig, 1886.) for scientific books - those published in the 

 International Scientific Scries preferred. —James H. 

 Stoller, Schenectady, N.Y. 



Astronomical works and reports wanted in exchange or 

 to buy. Reports of observations on the planet Neptune 

 and its satellite specially desired —Edmund J. Sheri- 

 dan, B.A., 295 Adelphi St., Brooklyn, N.Y. 



I would like to correspond with any person having 

 Tryon's "Structural and Systematic Conchology'' to 

 dispose of. I wish also to obtain State or U.S. Reports 

 on Geology, Conchology, and Archaeology. I will ex- 

 change classified specimens or pay cash. Also wanted a 

 copy of MacFarlane's " Geologists' Traveling Hand-Book 

 and Geological Railway Guide." — D. E. Willard, Cura- 

 tor of Museum, Albion Academy, Albion, Wis. 



Morris's "British Butterflies," Morris's "Nests and 

 Eggs of British Birds," Bree's "Birds of Europe" (all 

 colored plates), and other natural history, in exchange 

 for Shakesperiana ; either books, pamphlets, engravings, 

 or cuttings. — J. D. Barnett, Box 735, Stratford.-Canada. 



I have Anodonta opalina (Weatherby), and many 

 other species of shells from the noted Koshkonong Lake 

 and vicinity, also from Western New York, and fossils 

 from the Marcellus shale of New York, which T would be 

 glad to exchange for .specimens of scientific value of any 

 kind. I would also like to correspond with persons inter- 

 ested in the collection, sale, or exchange of Indian relics.- 

 D. E. Willard, Albion Academy, Albion, Wis. 



Will_ exchange "Princeton Review" for 1883, Hugh 

 Miller's works on geology and other scientific works, for 

 back numbers of " The Auk," "American Naturalist," 

 or other scientific periodicals or books. Write. — T. M. 

 Keck, Chardon, Ohio. 



Shells and curiosities for marine shells, curiosities Or 

 minerals address W. F. Lerch, No. 308 East Fourth St., 

 Davenport, Iowa. 



CATARRH. 



Catarrhal Deafness— Hay Fever. 



A NEW HOME TREATMENT. 



Sufferers are not generally aware that these 

 diseases are contagious, or that they are due to 

 the presence of living parasites in the lining 

 membrane of the nose and eustachian lubes. 

 Microscopic research, however, has proved this 

 to be a fact, and the result of this discovery is 

 that a simple remedy has been formulated where- 

 by catarrh, catarrhal deafness and hay fever are 

 permanently cured in from one to three simple 

 applications made at home by the patient once 

 in two weeks. 



N.B. — This treatment, is not a snuff or an 

 oinlment ; both have been discarded by re; u- 

 table physicians as injurious. A pamphlet ex- 

 plaining this new treatment is sent free on 

 receipt of stamp to pay postage, by A. H. D^x- 

 on & Son, 337 and 339 West King Sit'eet. 

 Toronto, Q,&-a.&&2..— Christian Advocate. 



Sufferers from Catarrhal troubles should care- 

 fully read the above. 



Wants. 



A Jiy person seeking a position /or luhick he is quali- 

 fied tfy his scientific attaimnen^s^ or any person seeking 

 some one to fill a position 0/ this character^ he it that 

 0/ a teacher 0/ science., chemist^ drattgktsman, or ivkat 

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

 FREE OF COST, if he Satisfies the publisher 0/ the suit- 

 able character 0/ his application. A ny person seeking 

 information on any scientific guestion, the address 0/ 

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

 U7nn for a purpose consonant with the nature of the 

 paper ^ is cordially invited to do so. 



[Vol. XV. No. 366 



THE 



Mm Bell Tipliie 



COMPANY. 



9S MILK ST, BOSTON, MASS. 



This Compauy owns the Letters 

 Patent granted to Alexander Gra- 

 ham Beli, March 7th, 1876, No. 

 174,465, and January ;{0, 1S77» 

 No. 186,787. 



The TransmissioQ of Speech by 

 all known forms of KLECTRIC 

 SPEAKING TELEPHONES in- 

 fringes the right secured to this 

 Company by the above patents, and 

 renders each individual user of tel- 

 ephones, not furnished by it or Its 

 licensees, responsible for such un- 

 lawful use, and all the conse- 

 quences thereol and liable to suit 

 therefor. 



FOR SALE. 



A first-class water motor, for hydrant pressure of 

 20 pounds or over. 



No experiment; 5,000 in use. 



Clean, simple, safe, reliable, economical, and very 

 desirable. No dirt, delay, or danger. Always ready; 

 no repairs. Any one can erect and operate it in 

 parlor, workshop, or offioe. For price, particulars, 

 etc., address "HYDRAULIC," care of Science, 

 47 Lafayette Place, New York. 



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 

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

 Pa. 



PRACTICAL CHEMIST, with 10 years' 

 experience in superintending manufac- 

 ture of oil of vitrei, fertilizers, acetic acid, 

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

 Bestre ferences. P. 0. Box 43, Edgevrater, 

 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 assay er and chemist. Good references. 

 Address G. C, care Science. 



WANTED.— A position in an Academy, 

 Normal or High School, as teacher of 

 the Natural Sciences and IModern Languages. 

 Latin taught in addition if necessary. Address 

 G., Box 441, Hanover, N.H. 



A YOUNG SCOTCHMAN desires an ap- 

 pointnient 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 return for experience and con- 

 venience of perfecting original appliances. Ad- 

 dress E. C. Owen, care of Gibson &• Simpson, 

 gj Adelaide Street East, Toronto, Canada. 



AN ANALYTICAL CHEiWIST is open to 

 an engagement in mining, metallurgy, 

 calico-printing, and bleaching, or as research 

 chemist in alkali manufacture. Address 



"Alkali," care of Science. 



Physical Apparatus. 



Electrical Apparatus. 



Chemical Apparatus. 



For Schools and Colleges. 



Write for Estimates. 



JAMES W. QUEEN & CO., 



924 Chestnut St., Philadelphia. 



H. Wunderlich & Co., 



868 BROADWAY, 



NEW YORK, 



Invite special attention to their latest 

 importations of Modern Etchings, En- 

 gravings, Brown's Carbon Photographs 

 and Watercolor Paintings, also to their 

 large collection of Rare English Mezzo- 

 tints, Fancy Subjects by Bartolozzi, 

 old Line Engravings, and Original 

 Works by Rembrandt, Durer, and other 

 old masters. 



RUPTURE 



cured in stipulated time. 

 NO DELAY FROM WORK. NO OPERATION. 

 Call or.'^end stamp for circular and reference of those 

 cured. We have on hand over 300 styles of trusses, from. 

 $1 up. and suspensories of all kinds. Orders filled by 

 mail or express to any part of the United States. 



C. A. M, BURNHAM, M.D.. 



138 Clinton Place, New York. 



IGENTS WaHTEDSicrSJ^lT/!lv,"p-LEVRE¥Tr'i?4 

 opportunity. Ceo. A. Scotti S42 Broadway,' N. Yi 



