SCIENCE. 



CALENDAR OF SOCIETIES. 

 Natural Science Association of Staten 

 Island. 

 Jan. 9. — The building fund coniiaittee 

 reported that the public appeal, heretofore 

 adopted, had been printed and distributed 

 to all members, to the press of the county, 

 and to about two hundred prominent citi- 

 zens in all parts of the island. Mr. Thos. 

 Craig showed specimens of Staten Island 

 pond-life under the microscope. Among 

 the objects shown were Ainceba proteiis and 

 Protococcus viridis. The latter organism is 

 the cause of the green coating on the trees, 

 stones and fences, which has atti-acted so 

 much attention lately, especially in New 

 York, where some persons have tried to 

 connect it with the prevailing epidemic 

 of influenza or ' ' gTip. ' ' Dr. Britton 

 showed seeds of native orchids {Corallorhiza 

 odontorhiza and C. multiflora) under the 

 microscope, and explained their differ- 

 ences of appearance and sti-ucture. Mr. 

 Arthur Hollick presented specimens of 

 Draba verna in full bloom, collected at 

 Tottenville, Dec. 30, at which date the 

 fields in places where white with it. Skunk 

 cabbages were in full bloom in abundance 

 in many of the swamps at the same place. 

 Ml-. Hollick also showed fossil leaves in 

 clay ironstone from the shore at Totten- 

 ville. The specimens were part of a re- 

 cent rich find, resulting in adding many 

 new species of the local fossil flora, which 

 will be studied and reported upon at some 

 time in the future. 



Exchanges 



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

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

 york.l 



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

 S. line southward, and fr.im Pacific Islands, 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 as he should have done. 



I will give 100 good arrow heads for a fine pair of wild 

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

 or other horns write me, and also how many arrow heads 

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

 and arrows. W. F. Lerch, 308 East 4th St , Davenport, 



I wish to purchase Vol. 7 of the /I merican Chemical 

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

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

 Tenn 



A few duplicates of Murex radix, M. ramosiis, M. 

 b'-andaris. Cassis ru/a. Harpa ventricosa, Oliva'tri- 

 atula, O. reticularis, Chlorostoina funebrale, Cyprcea 

 caput serpent is, C. lynx, Lottia gigantea, Acmola 

 patina, Chama spinasa, 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 mineials and fossils. — L. L. Lewis, Copenhagen, 

 New York. 



Droysen's A Igemeiner Histaricher Hand-atlas (Leip- 

 zig, 1886,) for scientific books - these published in the 

 International Scientific Series 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 Archaiology. 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" (al 



colored plates), and other natural history, in exchange 

 for Shakesperiana ; either books, pamphlets, engravings 

 or cuttings. — J. D. Barnett, Box 73s, 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 Marccllus sha'e of New York, which I would be 

 glad to exchange for specimens of sci-^ntific value of any 

 kind. 1 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, Hu,gh 

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

 back numbeisof " The Auk," " American Naturalist." 

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

 Keck, Chardon, Ohio. 



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. 



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 2415 

 Sacramento St., San trancisco, Cal. 



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

 class, in sets, with full data, which I will exchange for 

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

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

 Bernadotte, Fulton County, III. 



[Vol. XV. No. 365 



A Usefnl and Handsome Present. 



CATARRH. 



Catarrhal Deafness— Hay Fever. 



A NEW HOME TREATMENT. 



Sufferers are not generally aware that these 

 diseases are contagious, or that ihey are due to 

 the presence of living parasites in the lining 

 membrane of the no^e and eustachian tubes. 

 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 

 ointment ; both have been discarded by repu- 

 table physicians as injurious. A pamphlet ex- 

 plaining this new treatment is sent free on 

 receipt of stamp to pay postage, by A. H. Dix- 

 on & Son, 337 and 339 West King Street. 

 Toronto, Canada. — Christian Advocate. 



Sufferers from Catarrhal troubles should care- 

 fully read the above. 



ENLARGED AND IMPROVED. 



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JOHN S. HULIN, 



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and Dealer in Useful Office Specialties, and Labor 

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 of the celebrated Pictures of the Rebellion, from 

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Send stamp for illustrated catalogue. 



No. 369 BRO VDWAY, New York. 



TheHulin Diary CALEND.iR for 1890, with wire 

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Wedding invitations and visiting cards en- 

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ANY OF 



Prof. A. MELVILLE BELL'S WORKS 



— ON— 



Elocution — Visible Speech — 

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 of Speech — Phonetics — Line 

 Writing — World - English, 

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SUPPLIED BY 



N. D. C. HODGES, 



47 Lafayette Place, N.Y. 



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