November i, 1889. 



SCIENCE. 



;ceived at Editor's Qffic 

 Oct. 14-26. 



Anecdotes Nouvelles. Lectures faciles 



Recitations a I'Usage des Classes de Francais. New 



York, C. E. Merrill & Co. 71 p. is°. 40 cents. 

 BjoRNSTROM, F. Hypnotism : Its History And Present 



Development. ' Tr. by Baron Nils Posse, M.G. 



(Huraboldt-Liliranr Series, No. ml New York. 



Humboldt Publ Co. 126 p. 8°. Cloth, 75 cents; 



paper, 30 cents 

 Bryant, W. C. Ulysses among the Phasacians. From 



rhe Translation of Homer's Odyssey. (Riverside 



Literature Series, No. 43.) Boston and New York, 



Houghton, Mifflin, & Co. 72 p 16^. iq cents. 

 ■Chambkks's Encyclopedia. New ed. Vol. IV. Dio- 



nysius to Friction. Philadelphia, Lippincott. 82S d. 



S'. S3. 

 Chisholm, G. G. Handbook of Commercial Geography. 



London and New York, Longmans, Green, & Co. 



515 P 8°. $s 

 DuChaillu, P. B The Viking Age. Vols. I. and IL 



New York, Scribner. iis3 p. 8°. $7.50. 

 Freshfield. D. W., and Wharton, W, J. L. Hints to 



Travellers, Scientific and General. 6tli ed. London, 



Rog. Geogr. Soc. 430 p. 16°. Sr.50. 

 Greene, H. Coal and the Coal Mines. Boston and 



New York, Houghton, Mifflin, & Co. 246 p. 16°. 



75 cents. 

 India Rubber World and Electrical Trades Review. 



Vol. L No. I. m. New York, India Rubber Publ. 



Co. 22 p. 4". S2 per year. 

 Phelps, Elizabeth Stuart. The Struggle for Immortality. 



Boston and New York, Houghton, Mifflin, & Co. 



245 p. '6°- Si-2S- 

 Scott, R. P. Cycling Art, Energy, and LocomoMon. 



Philadelphia. Lippincott. 305 p. 12°. §2. 

 Strasburgee. I". Handbook of Practical Botany. Ed. 



by W. Hillhouse. 2ded. London, Swan Sonnen- 



schein & Co. 425 p. 8°. CNew York, Macmillan, 



$2.50.) 

 Walkf.r, S. F. Electricity in our Homes and Work 



shops. London, Whittaker & Co. ; New York, Van 



Nostrand 320 p. 16''. $1.50. 

 "Washington Life Insurance Company, The. Historical, 



Actuarial, and Medical Statistics. New York, Wash- 

 ington Life Ins. Co. 161 p. 8°. 

 Watson, H. W., and Burborv, S. H. The Mathemati- 

 cal Theory of Electricity and Magnetism. Vol. II, 



Magnetism and Electrodynamics. Oxford, Clarendon 



Pr. 256 p. 8°. (New York, Macmillan, $2.60.) 



Exchanges 



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

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

 York.l 



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 of alhia (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 I would be 



flad to exchange for specimens of sci-ntific value of any 

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

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

 D. E. Williard, Albion Academy, Albion, Wis. 



Will exchange "Princeton Review" for 1883, Hugh 

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

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

 ■or other scientific periodicals or books. Write. — J. M. 

 Keck, Chardon, Ohio. 



A collection of fifty unclassified shells for the best offer 

 in bird skins ; also skins of California birds for those of 

 birds of other localities. Address Th. E. Slevin, 2413 

 :Sacramento St., San trancisco, Cal. 



I have forty varieties of birds' eggs, side blown, first 

 •class, in sets, with full data, which I will e-xchange for 

 books, scientific journals, shells, and curios. Write me, 

 stating what you have to offer. — Dr. W. S. Strode, 

 Bernadotte, Fulton County, III. 



" T wish to exchange Lepidoptera with parties in the 

 eastern and southern states. I will send western species 

 for those found in other localities." — P. C. Truman, 

 Volga, Brookings Co., Dakota. 



Shells and curiosities for marine shells, curiosities or 

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

 Davenport, Iowa. 



I want to correspond and exchange with a collector of 

 beetles in Texas or Florida. — Wm. D. Richardson, 

 P.O. Box 223, Fredericksburg, Virginia. 



TOO botanical specimens and analyses for exchange. 

 Send list of those desired and those which can be fur- 

 nished, and receive a similar list in return. Also cabinet 

 specimens and curiosities for the same. Scientific corre- 

 inondence solicited. — E. E. Bocue, Orwell, Ashta. 

 County, O. 



I will sell to chapters or individual members of the 

 Agassiz Association, 2> fine specimens of fossil plants 

 from the Dakota group (cretaceous), correctly named, for 

 $2.50. Send post-office order to Charles H. Sternberg 

 (author "Young Fossil-Hunters"), 1033 Kentucky 

 Street, Lawrence, Kan. 



The undersigned wishes to make arrangements for the 

 exchange of Lcfldoplera of eastern Pennsylvania for 

 ■those from other localities. All my specimens are named 

 and in good condition. — Charles S. Westcott, 613 North 

 17th Street, Philadelphia, Peno. 



CALEND.A.R OF SOCIETIES. 



Philosophical Society, Washington. 



Oct. 26. — Romyn Hitchcock, The Action 

 of Light on Silver Chloride ; F.W.Clarke, 

 Relative Abundance of the Chemical Ele- 

 ments; William Hallock, Note on Chemical 

 Action between Solids. 



Engineers' Club, Philadelphia. 



Oct. 19. — The secretary presented for Mr. 

 Conway B. Hunt a very complete description 

 of repairing a bridge pier's foundation. These 

 repairs were made to what is known as Pier 

 No. I of the Aqueduct Bridge over the Poto- 

 mac River. The rock bottom of the river is 

 from twenty five to thirty-five feet below low 

 tide. After an extraordinary freshet, a set- 

 tlement was discovered ; and investigation 

 showed that a cavity had been scoured under 

 the pier, extending the full length of the pier 

 and across its up stream end. This cavity 

 was about four feet high, and extended about 

 six feet back under the pier. The author 

 then gave a very ftiU description of the man- 

 ner in which this pier was constructed, from 

 which it appears that all of the masonry had 

 not been extended to the rock. After the 

 first settlement was observed, it was found 

 to continue, and repairs were at once begun. 

 These were made by lowering concrete in 

 loosely tilled bags, which were packed in the 

 irregular cavity by divers, and by lowering 

 concrete in tubes, which were tripped and 

 the material pushed with hoes and special 

 tools into all the remaining portions of the 

 cavity, until it was completely tilled with a 

 substantially solid mass of concrete. The 

 outer surface of the pile of bags was finished 

 with loose concrete. The method of pre- 

 paring the concrete and doing the work was 

 then described. The repairs occupied about 

 eleven working days, and about one hundred 

 and ten cubic yards of concrete were used. 



Natural Science Association, Staten 



Island. 

 Oct. 10. — William T. Davis, Notes in 

 Regard to Butternut-Trees on Staten Island. 



American Institute of Electrical Engi- 

 neers, New York. 

 Oct. 29. — George B. Prescott, jun„ Some 

 Methods of Regulating Accumulators in 

 Electric Lighting. 



Some 



Children \ 

 Growing 



Too Fast \ 



become listless, fretful, without ener- 

 gy, thin and weak. But you can for- 

 tify them and build them up, by the 

 use of 



SCOTT'S 



EMULSION 



OF PURE COD LIVER OIL AND 



HYPOPHOSPHITES 

 &£ SAsae and ^oda. 



They will take It readily, for it is al- 

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 should be remembered that AS A PBE- 

 VEATIVE OR CUKE OF COUCHS OK COLDS, 

 IN BOTH THE OLD ANO YOUNS, IT 13 



UNEQUALLED. Avoid sv)>sfitut ions offered. 



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