294 



SCIENCE. 



[Vol. XVI. No. 407 



CALENDAR OF SOCIETIES. 

 Biological Society, Washington. 



Nov. 1.— F. V. Coville. Fruiting of the 

 Ginkgo at the Department of Agriculture; 

 George Mars, Investigations of the Poison 

 Glands of Lathrodectus; Joseph F. James, 

 Fucoids and other Problematic Organisms. 



Nov. 15.— C. Hnrt Merriam. Life of the 

 Lava-beds and Canons of Snake River, Idaho, 

 in October; Theo Holm, The Vegetative 

 Propagation of Dicentra cucuHaria; W. H. 

 Dall. Paleontological Notes from the North- 

 west Coast; F. A. Lucas, A Foot-Disease of 

 Captive Birds. 



New York Academy of Sciences. 



Nov. 10.— Alexis A. Julien. On tlie Mi- 

 crobe of Phosphorescent Wood (illustrated by 

 microscopic preparations). 



Boston Society of Natural History. 



Nov. 19.— Nathan Appleton, Santo Do- 

 mingo (illustrated by the stereopticon). 



Wants. 



A ny person seeking a position /or -whick he is qualj- 

 fi-ed by his scientific atlainmen's, or any person seeking 

 some one to fill a position of this character^ be it that 

 0/ a teacher ofi science^ chentist . draughtsman^ or -what 

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

 FREE OF COST, if he Satisfies the publisher of the suit- 

 able character of his application. A ny person seeking 

 information on any sciejitific question, the address of 

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

 umn for a purpose consonant with the nature of the 

 paper, is cordially invited to do so. 



WANTED.— There being a considerable annual 

 income for the purchase of books for the Mu- 

 seum Reference Library of Iowa College, it is de- 

 sirable to have at hand any and all circulars, speci- 

 men sheets, catalogues, etc., of all works on Natural 

 History in general, both foreign and domestic. 

 Circulars of museum supplies, apparatus, etc., etc.. 

 desired also. State terms. Address BRWIN H. 

 BARBOUR, Box 1333, Grinnell, Iowa. 



WANTED.— A situation as Analytical Chemist is 

 desired by the assistant of the late noted 

 scientist. Dr. Cook, during his 15 years survey of the 

 State of New Jersey, Highest testimonials fur 

 nished. Address Prof. EDWIN H. BOGARDtJS, 

 New Brunswick, P, O. Box 224, care Prof. F. C, 

 Van Dyck. 



WANTED.— To purchase a complete set, or single 

 " numbers, of Loorais' contributions to mete- 

 orology, published in the American Journal of 

 Science. Address communication, stating price, to 

 FRANK WALDO, Mountain Lake Park, Qarrett 

 Co., Maryland. 



COULD some one inform me what the ingredients 

 and origin of asphalt as used for street-paving 

 and gathered at Trinidad are? Also how gathered 

 and shipped by natives, and mode of refining by the 

 Warren-Scharf Co. of New York and the Barber Co. 

 of Washington? G. KNIPEB, 28 Qunn Block, Grand 

 Rapids, Mich. 



WANTED.— A position in a Normal School or Col- 

 lege as teacher of Botany, Physiology, Zoolo- 

 gy, Embryology, Chemistry, Physics, or German, by 

 a university graduate who lias done special work in 

 the above lines. Several years' experience in teach- 

 ing, and one year as assistant in Biology in a prom- 

 inent university. Box 390, Greencastle, Ind. 



PROFESSOR W. M. DAVIS, Harvard College, 

 Cambridge, Mass., desires to correspond with 

 professional and amateur photographers, from whom 

 he can obtain views of New England landscapes. 



Exchanges. 



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

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

 Vork.l 



I wish to exchange Eastern Lepidopiera for those that 

 I do not have, particularly those foand in the South. 

 Jos. F. Crandall, Honesdale, Wayne Co., Pa. 



To exchange, i8q3 Seeger and Guernsey Cyclopedia, 

 containing a complete list of the manufactures and pro- 

 ducts of the U. S.. and address of first hands, cost $6. 

 David R. Lewis, Saybrook, III. 



For exchange— Nice specimens of Unios alatus, trigo- 

 nus. oatvus. occidens, anadontoides gibbosus, rectus,veru- 



Margantana confrogosa, complanata, 



edentula, decora, corpulenta, and 



utiful Ana. suborfiiculata. Wanted: 



rid, and sea-shells. 



plicatus cornutus. 

 rugosa. Anadont; 

 about 300 of the be 

 Unios from all patis of tlie 

 drees Dr. W. S. Strode, Berr 



idotte. III. 



We would announce that ive have 



secured the Atnerican Agency 



for the Quarterly 



JOURNAL OF MICROSCOPY AND 

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SAMPLE COPIES lO CESJTS. 



CONTENTS OF OCTOBER NUMBER. 



Life in Death, as Manifest in Falling Leaves. 

 Curious want of Ingenuity in the Harvesting 



Ants of France. 

 Frog Farming. 

 Some Thoughts on Light. 

 Cysticercooids Parasitic in Cypres cinerea. 

 Some remarks on the PucciniEe attacking 



Galium. 

 The Influenza Bacillus. 



Mounting Medium for Vegetable Structures. 

 The Study of Entomology. 

 A Homely Zoophyte Trough. 

 Beetles. 



Dips into my Aquarium. 

 Artificial Sea-Water. 

 Among the Sea-Urchins. 

 Food from Wood. 

 The Elements of Microscopy. 

 The Aspect of the Heavens. 

 In Darkest Africa. 



Selected Notes from the Society's Note Books. 

 (80 pages in this part.) 



Coccus cataphractus. 



Goraphonema Germinatum. 



Fronds of Ferns. 



Cuticle Stangeria paradoxa. 



Stangeria paradoxa. 



Trachese of Insects. 



Unopened Eye-lids of Kitten. 



Section of Piper. 



Law of Mole. 

 Reviews. Title. Preface. Index. 



N. D. C. HODGES, 47 Lafayette Place, N.Y. 



"Xlie Comer Stone of a ITatton."— 



Longfellow. 



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