1GS 



HARDWICKE'S SCIENCE-GOSSIP. 



[July 1, 186S. 



NOTICES TO CORRESPONDENTS. 



All communications relative to advertisements, port-office 

 orders, and orders for the supply of this Journal should be 

 addressed to the Publisher. All contributions, books, 

 and pamphlets for the Editor should be sent to 192, 

 Piccadilly, London, W. To avoid disappointment, contri- 

 butions should not be received later than the 15th of each 

 month. A'o notice whatever ran be taken of communica- 

 tions which do not contain the name and address of the 

 writer,\\ot necessarily for publication, if desired to be with- 

 held. We do not undertake to answer any queries not 

 specially connected with Natural History, in accordance 

 with our acceptance of that term ; nor can we answer 

 queries which might be solved by the correspondent by an 

 appeal to any elementary book on the subject. We are 

 always prepared to accept queries of a critical nature, and 

 to publish the replies, provided some of our readers, besides 

 the querist, are likely to be interested in them. We 

 cannot undertake to return rejected manuscripts unless 

 sufficient stamps are enclosed to cover the return postage. 

 Neither can we promise to refer to or return any manu- 

 script after one month from the date of its receipt. All 

 microscopical drawings intended for publication should 

 have annexed thereto the powers employed, or the extent 

 of enlargement, indicated in diameters (thus : x 320 

 diameters). Communications intended for publication 

 should be written on one side of the paper only, and all 

 scientific names, and names of places and individuals, 

 hould be as legible as possible. W r herever scientific names 

 or technicalities are employed.it is hoped that the common 

 names will accompany them. Lists or tables are inad- 

 missible under any circumstances. Those of the popular 

 names of British plants and animals are retained and regis- 

 tered for publication when sufficiently complete for that 

 purpose, in whatever form may then be decided upon. 

 Address No. 192, Piccadillt, London, W. 



F. F.— We have known lizards and frogs supplied regularly 

 with such food to flourish satisfactorily. 



H. C. L. — We have had similar examples of the variety 

 Scularis of the common snail {Helix aspersa), even more 

 widely separated than yours, communicated to us. It is not 

 common when compared with the numerical strength of the 

 species. 



J. W. G.— Why seek such an elaborate origin for the word 

 " scarecrow." Does it not afford its own evidence ? 



A. S., F. R. P., and W. E. M. should read the notices of 

 Exchanges carefully, and comply with the conditions. We 

 cannot enter upon private correspondence relative to the 

 objects offered, and of which we may be custodian. Should a 

 reply be necessary, it is usual to enclose a stamped envelope. 



W. B. L. — The trouble is nothing compared with the ex- 

 pense. 



J. L. E.— Small galls produced by an insect on leaves of 

 the hedge maple. 



J. C— Received on the 9th of June, so rotten with being 

 enclosed in an air-tight box that identification was quite 

 impossible. 



S. H.-We think that wehave done enough for the tadpoles 

 for this season. 



C. L.— Common and well-known to vegetable physiolo- 

 gists. 



T. P. B.— Our remark on " not seeing good cause to alter 

 our opinion'' had reference to the insertion of a list of names. 



G. R.— Encourage the little birds, and they will prove the 

 best enemies to your plague of caterpillars. 



Trowbridge. — Dipterous larva, of a species of Tipula. 



C. R. S. — We know of no chemical book " treating largely 

 of Aniline dyes." The Chemical News would perhaps give 

 you more complete information. 



J. C. — 1. Ceramium diaphanum. 2. Desmarestia aculeata, 

 autumn condition. 3. Stilophora rhizodes. Such indifferent 

 specimens are really not worth the trouble of naming.— 

 W. S. G. 



R. V. T. — 1. Trifolium scabrum. 2. Trifolium striatum.— 

 B. 



B. — On Sanicula Europrea is JEcidium suniculoe. 



Prior's Popular Names of British Plants. W r anted 

 to purchase a copy.— Address the Editor. 



Lichens. — A student living in Westmoreland would be 

 glad of correspondents in other parts of England, wiili a view 

 to the interchange of specimens, local, or rarely fruiting. 

 Address, Joseph A. Martindale, Staveley, near Kendal. 



C. E. P.— See Exchanges, p. 120. 



W.J. F. — Not developed, hence uncertain. 



R. S. — The fly rather common about houses just now is 

 Anthomyia plunialis (order Diptera, family Muscidae), so called 

 because considered indicative of rain. — F. W. 



W. — The small flies belong to a species of Encyrtus, a genus 

 of Chalcidida;, parasitic in the bodies of female Cocci (closely 

 allied to Encyrtus punctipes), and the fragile gall-like case 

 mentioned is doubtless the shrivelled body of the female 

 Coccus.— I. 0. W. 



J. F. W. — We are always ready to describe the inventions 

 and improvements of amateurs, but have an objection to the 

 insertion of descriptions of apparatus manufactured by 

 opticians, unless we have seen and consider them of special 

 importance. We cannot insert all, hence it would be unfair 

 to those who are excluded. 



R. G. — Apparently a linear-leaved Patamogeton, but im- 

 possible to identify from a leaf or two rolled up and crushed 

 in a letter. 



Mosses. — Answers and names next month. 



EXCHANGES. 



Diatoms. — Twelve excellent slides will be given for pure 

 gatherings of Tryblionella gracilis and puncata, or Donkinia 

 cannula.— J. A., 13, Suffolk Square, Cheltenham. 



Pike Scales, Hairs from Larv.<b of Gold-tailed 

 Moth (unmounted), or Land and Fresh-water Shells, 

 for mounted objects of interest.— Alfred Taylor, Hezmalhatch 

 Yard, York Street, Leeds. 



Carex.— Twenty-eight species in exchange for seedling 

 exotic ferns. Lists exchanged. H. J. Ryder, 18, Bachelor's 

 Quay, Cork. 



Navicula. — A slide of Navicula crassinervia, cuspidata, 

 gibberula, Jenneri, Westii, elegans, lyra, quadrata, or hume- 

 rosa, wanted for other objects. Each slide to be mounted 

 from a pure gathering, or one of the species named must be 

 the prevailing form. — Address the Editor. 



Fleas.— Bat-flea and Mole-flea, male and female, or any 

 of them wanted, mounted or unmounted, in exchange for 

 good objects. — Address the Editor. 



Fossils.— Twenty-four post-pleiocene Fossils from Maine, 

 U.S., for an equal number of named British Fossils.— E. C. B., 

 care of the Editor. 



Land and Fresh-water Shells of America. — 99 

 species for British species, or good British Fossils.— E. C. B , 

 care of the Editor. 



Fresh-water Stonce.— Both British species wanted for 

 mounted spicules of Indian Sponges.— M.,C. C, 2, Junction 

 Villas, Upper Holloway, N. 



Fossils and Recent Shells required for about 200 

 modern foreign and colonial Copper Coins.— X., Post Office, 

 South Shields. 



Larvjk of Saturnia pavonia, Phragmatobia fuli- 

 ginosa, and Lasiocampa Quercus wanted for Birds' Eggs, 

 or Land and Fresh-water Shells.— J. Gledhill, 28, King 

 Cross, Burnley Road, Halifax. 



BOOKS RECEIVED. 



" First Lessons on Astronomy, in Question and Answer." 

 ;th edition. London : Jackson, Walford, & Hodder. 



" Christianity and Modern Progress," by the Rev. Alex- 

 ander Raleigh, D.D. London • Jackson, Walford, & Hodder. 



" The Naturalist's Circular " for June. London: H. Hall. 



" Country Life." Nos. 42, 43. London: 10, Bolt Court. 



" The Food, Use, and Beauty of British Birds," by Charles 

 Ottlev Groom Napier. London : Groombridge & Sons. 



" The Botany of Worcestershire," by Edwin Lees, F.L.S., 

 F.G.S., &c. Worcester : Printed for the Worcestershire 

 Naturalists' Club, I867. 



" Polar Magnetism," a paper read before the American 

 Institute by John A. Parker. New York: Wiley & Son. 



" On Certain Butterfly Scales characteristic of Sex," by 

 T. W. Wonfor. Reprinted from the Microscopical Journal. 



" The American Naturalist," June, 1868. Salem : Peabody 

 Academy. 



" High Wycombe Natural History Society Annual Report" 

 for 1 867-8. 



Communications Rkceivkd. — T. P. B.— F. W. B.— 

 T. R. C— R. Y. r T.-B.— F.J.D. H.-T. G. P.— C. L.— T. J. 11. 

 — C. O. G. N.— W. O.— G. H. K.— J. F. W.— S. S.— W. W.— 



F. R-T. E. F.-S. H— J. A.— H. E. C— S. J. M'l.-A. T.- 



G. R.— A. C. H.— J.C.— F. R.S.— W. L.— J. L. E.— W. W. \V. 

 — W. B. L.-J. B— H. E. W.— A. B. F.-E. W.— W. H.— 

 F. C. S. R.-A. S.— R. L.-F. R. P.-E. T. S.— J. W. G.— 

 W. E. M.— H. C. L.— L. H. F.— F. F.— A. G. P.— W. J. F.— 

 R. II.— J. H. F.-J. C. W.-W. W. S.— E. W.— J. C- J. R.— 

 J. P.-F. W.B.— T. W. W.— C. M. W.— B.— S. B.— A. H.— 

 C. R. S.— J. B— L. V. H.— R. B.— G. R. P.-G. G.— F. R. M. 

 E. H. (too late).— J. M.— T. H.— J. G.-C. E. P.— G. R. R.— 

 K. G. A.-R. D.— S. S. 



