120 



HAIIDWICKE'S SCIENCE-GOSSIP. 



NOTICES TO CORRESPONDENTS. 



Am. communications relative to advertisements, post-office 

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

 addressed to the Pdbushbr. All contributions, books, 

 and pamphlets for the Editor should be sent to 192, 

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

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

 month. No notice whatever can be taken of communica- 

 tions which do not contain the name and address of the 

 writer, not 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 do not 

 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 manuscript 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). Communi- 

 cations intended for publication should be written on one 

 side of the paper only, and all scientificnames.andnames of 

 places and individuals, should be as legible as possible. 

 Wherever scientific names or technicalities are employed, it 

 is hoped that the common names will accompany them. 

 Lists or tables are inadmissible under any circumstances. 

 Those of the popular names of British plants and animals 

 are retained and registered for publication when suffi- 

 ciently complete for that purpose, in whatever form may 

 then be decided upon. Address. No. 192, Piccadilly, 

 London, W. 



E. F. E., E. B. — The "Handbook of British Fungi," Part 

 II., has been delayed on account of the increased number of 

 woodcuts. All is now in type, except the Indices, and it will 

 be issued as speedily as possible. 



J. B., L.-We have no knowledge cf the progress of Dr. 

 Carrington's "British Hepaticaj." 



W. B. F.— Your remarks about the " Descent of Man" do 

 not take the form of argument. Of course we cannot insert 

 rhapsodies. As to the hawk, catch it, and then name it. We 

 are no advocates of "guessing" in Natural History. 



E. C. J. — We have not, and have not had, crayfish for dis- 

 tribution, therefore you must have fallen into error. 



G. M. G. — No exchanges should be expected to hold good 

 after the current month. 



R. D.— It is difficult to discover how you can ever learn to 

 name mosses for yourself, or know more than a parrot about 

 them, it you send us all your specimens to name for you. It 

 is a kindness to help an amateur who tries to help himself, 

 hut it is unreasonable to suppose that our offices, and those 

 of our coadjutors, are at the periodical service of those who 

 are too idle to work out their own problems. This reply is 

 needed by others equally with the owner of the above initials. 



L. M. C— Pale-coloured cockroaches and earwigs are only 

 early conditions; in time they assume their orthodox tint. 



C. B.— A is a common lichen, Peltidea canina; B also a 

 lichen, Ramalina calicaris ; C a sea-weed, Corallina officina- 

 lis; V is Membranipora pilosa on sea-weed. 



E. W.— " Ferns, British and Foreign,'' by Smith, would 

 doubtless suit your purpose. 



J. L. P.— If you capture and send one of the insects we will 

 name it for you, but we do not guess. 



G. S. S.— 1. Yes. 2. Yes. 3. No; Trifolium liybridum. 

 4. Notnecessarily.it is Lepidium ruderale. 5. Yes. — B. 



M. D. P. — Pigeons of course. Read a good history of birds. 

 It will be entertaining, and you seem to require the informa- 

 tion it would afford. What do you mean by " English Hum- 

 ming Bird"? You must go to warmer countries, even than 

 Torquay, for Humming Birds. 



A. N.— What do you mean by the "Musk"? and by "Elec- 

 tric Water"? The ermine is the winter condition of the 

 Stoat, which is common enough in England. 



W. J.— Sometimes cartridge paper, sometimes writing 

 paper, quality and size according to taste. Try half sheets of 

 demy cartridge, or if too lang, cut shorter to suit you. 



C. P. C— Unfortunately there is no good work on " Roti- 

 fers " at a moderate price. Pritchard's •' Infusoria" is the 

 best work we could recommend you, as including the Roti- 

 fers with descriptions and numerous figures. No details 

 have yet been published for examining the lung of the living 

 frog. 



W. F. A. — Didymium cinereum. 

 specimens you offer. 



H. J. I. — Polyporus versicolor, Fr. 



Should be glad of the 



EXCHANGES. 



Notice. — Only one " Exchange " can be inserted at a time 

 by the same individual. The maximum length (except for 

 correspondents not residing in Great Brita'n) is three lines. 

 Only objects of Natural History permitted. Notices must be 

 legibly written, in full, as intended to be inserted. 



Collomia Seeds (for showing spiral fibres in section), 

 winged seeds of Paulownia and Lophospermum.— Any good 

 material or slide to H. Wills, Dorset Bank, Warminster. 



Placodium pulgens and Trichostornum convolutnm, 

 offered in exchange for other rare lichens or mosses ; send 

 lists to R. V. T. ( Withiel, Bodmin, Cornwall. 



Wanted, an Amphipleura pellucida on which markings are 

 visible with any power.— Lieutenant J. C. Greene, Fort Brock- 

 hurst, Gosport, Hants. 



Cuticle of Equisetum, Flustra avicularis, and (or) Rhino- 

 ceros Horn, wanted (mounted or not) for good list.— C D. f 

 187, Oxford Street, Mile End, E. 



Anacharis prepared for polariscope, and several species of 

 Sphagnum offered for slamped address, and any object of 

 interest; especially Deutzia scabra. — Benj. Bellingham, 

 Round Oak, Brierley Hill. 



Biscuit Weevils for mounted microscopic objects or water- 

 plants.— W r . L. W., 7, Victoria Street, Cambridge. 



Twelve varieties of wood sections offered for two good 

 slides. Diatoms preferred.— J. Sargent, Jun., Fritchley, near 

 Derby. 



Pupje of Melitaa cin.ria (immediately), imagos at the end 

 of the month, for any local larva;, pupae, or imagos.— W. Jor- 

 dan, Binstead, Ryde, Isle of W r ight. 



Thirty characteristic animal hairs for other good material, 

 seeds excepted.— E. J. Wilson, 43, Upper Cumming Street, 

 Pentonville, N. 



Chara or Niteli.a. — Living plants wanted ; arrangements 

 by letter.— Address E. W., care of the Editor of S.-G. 



Volvox olobator wanted in some quantity, as collected. 

 Compensation will be offered. — Address F. E., care of Editor 

 of S.-G. 



Slides of diatoms for exchange for other slides of interest- 

 ing objects.— Apply to F. Lazenby, Sarum Villas, Basingstoke. 



BOOKS RECEIVED. 



"The Popular Science Review." April, 1871. London: 

 Robert Hardwicke. 



"The Chemical News." No. 5<)2. March 31, 18/1. 



"The Monthly Microscopical Journal." No. 28. April, 

 1871. London: Robert Hardw'cke. 



" The Scottish Naturalist." No. 2. April, 18/1. Perth: 

 Society of Natural Science. 



" Proceedings of the Bristol Naturalists' Society." Vol. V. 

 1870. 



" Archives of Science and Transactions of the Orleans 

 County Society of Natural Sciences." No. 2. January, 1871. 



" Proceedings of the Lyceum of Natural History, New 

 York." 



" Land and Water." Nos. 271, 272, 273, 274. 



"The Journal of Applied Science." April, 1871. 



" The Animal World," for April, 1871. 



"The Gardener's Magazine," for April, 1871. 



" West Kent Natural History, Microscopical, and Photo- 

 graphic Society, the President's Address and Reports," for 

 1870. Greenwich. 



" Prospectus of the South London Microscopical and 

 Natural History Club." Hon. Sec, F. Hovenden, 63, Angeil 

 Road, Brixton. 



"Boston Journal of Chemistry." April, 1871. 



"American Naturalist." March and April, 1871. 



"Illustrated Natural History of British Butterflies," by 

 Edward Newman, F.L.S., F.Z.S., &c. London : Tweedie. 



"Saturday Afternoon Rambles round London, Rural and 

 Geological Sketches," by Henry Walker. London: Hodder 

 it Stoughton. 



Communications Received.— H. E. W. — M. Q. M. C. — 

 J. H., Jun. A. H. A.— E. P. P.— B. E. C— E. H.— E. V. E.— 

 J. M. C-S. G.— E. C. J. -J. B.— R. D. K.-G.— T. R.- 

 E W.— R. H. W.- W. B. F.— E. D. M.— J. B.— K. L.— 

 H. C. R.— J. B.— G. M. G.-E. W— H. W. L.— R. E.— 

 L. M. C.-T. Q. C.-C. J. W. R.-E. T. S.-S. S.— J. H — 

 J. C. D.— W. F. H.— C. B.— R. V. T.— J. C. G.-G. H. S.— 

 G. S. S.— J. R. B. M.-A. B.— R. B -J. R. S. C— R. T., 

 31. A.— W. F. A.— E. P. B.— H. I.— E. J. W r .-T. R.-C. P. C. 



- M. H. C— J. B.— W. J.— J. M.— W. K. S.— A. E.— W. G. S. 



— B.— J. S., Jun.-W. L. W.— B. B.-H. J. I.— J. C— A. N.— 

 C. D.-E. B.— G. H. H.— M. D. P.-H. E. W— J. L. P. 



