72 



HARDVVICKE'S SCIENCE-GOSSIP. 



NOTICES TO CORRESPONDENTS. 



Ati communications relative to advertisements, post-office 

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

 addressed to the Pibi.isher. 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 7ir,tice whatever ran 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. 



A. N.— Gum dammar is used for mounting purposes, in- 

 stead of Canada balsam. The following is the recipe:— 

 Dissolve one ounce of gum dammar in one fluid ounce of 

 turpentine ; dissolve one ounce of mastic in two fluid ounces 

 of chloroform. Filter both liquids, and then mix. 



J. S. T.— The land-shells sent are Clausilia, laminiata. 



M. T., Croydon.— The fern sent is Pleris hustata ; but the 

 fronds are young, so as to render identification somewhat 

 difficult. It comes from the Cape of Good Hope, and was 

 introduced into this country in the yeap 1823. 



T. A., Leeds.— The mould growing on a Beaufoy vhiegar- 

 cask in a damp cellar belongs to the order Mucedines. It is 

 lihinotrichum lano&um. 



E. L.— 1. Niicleolifcs dimidiatus ; 2. Spine of Cidaris, from 

 the Middle Oolite. Not of much value for exchange, unless 

 they arc in a better state than those sent. They are evidently 

 Drift specimens. The fossils above mentioned are character- 

 istic of tlie Middle Oolite. 



W. D. Roebuck.— 1. Agriotes obscurus (the larva of which 

 is one of the "wire-worms"). 2. Coccinella ll-piinctafa 

 (C. dispar is only a dark form of C. hipunctata, and is black, 

 with about four red markings ; not red, with eleven black 

 spots, as in this insect). 3. Notiophilus sal/striatus. i. Cala- 

 thus melanocephalus. There are no works whereby exclu- 

 sively British Coleoptera can be named. Stephens's " Manual" 

 professed to supply this want, but is now quite obsolete and 

 unreliable. Spry and Shuckard give recngnizablo outline 

 figures of most of the now acknowledged British genera ; but 

 the student must rely on the standard European works by 

 Erichson, Kraatz, Thomson, and others. For information on 

 this and other points see Rye's " British Beetles," Lovell 

 Reeve & Co., lOs. 6d. 



R. S., Belper.— The scales on the slide sent are those of 

 some species of Macrotoma, perhaps M.plumbea. The scales 

 of the forms belonging to this genus show affinities to those 

 of Lepisma. See Sir John Lubbock's paper on the Thysnnura, 

 in the "Trans. Linneau Soc," and Mr. Mclntyre's Notes on 

 the Scale-bearing Podurce, in vol. i. of the Monthly Micro- 

 scopical Journal. — F. K. 



F. W. Harris, Jun.— Doubtless the growth of the mould 

 ■would be caused by damp in the first instance. A very slight 

 degree of damp is sufficient. The mould may be destroyed by 

 the application of spirits of wine with a camel's-hair pencil, 

 and if a'small quantity of bichloride of mercury (corrosive 

 sublimate) is dissolved in the spirits of wine, it will prevent 

 the specimens from being again attacked The proportion 

 should be about six grains of bichloride of mercury to an 

 ounce of spirit. 



Capt. Perrv, Liverpool.— The slide came to hand with 

 the centre smashed; enough, however, remained for exami- 

 nation. The forms are neither foraminifera nor diatom-, but 

 concretions of carbonate of lime, probably identical with 

 those found in the skhi of the shrimp or prawn. If examined 

 by means of polarized light, the globules will display the 

 black cross precisely the same as seen in the shrimp or 

 prawn -, if the tentacles of the Pht/salia had been examined 

 soon after its capture, the globules would have been seen in 

 situ.—F. K. 



EXCHANGES. 



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

 by the same individual. The maximum length (except for 

 correspondents not residing in fireat Britain) is three lines. 

 Only objects of Natural History permitted. Notices must be 

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



Wanted Microscopic leaf fungi (unmounted); objects of 

 interest in return. Li.sts exchanged.— H. D., 1, Stanley 

 Road, Waterloo, Liverpool. 



Tongue, eye, or spiracle of Drone -fly, professionally pre- 

 pared and well mounted, offered for transparent section of 

 coal or granite.— C. D., I87, Oxford Street, Mile End, E. 



Hklix kevei.ata for Clausilia Rolphii. — John Purdue 

 Ridgeway, Plympton, Devon. 



No«. 7.5, 157, 158. 160, 679, 6s6, 1149, 116.'), 1272, &c. &c., 

 Lond. Cat., for other plants.— G. H., 57, Bell Street, Calton, 

 Glasgow. 



Fervs, including Woodwardia radicans, Hypolepis repens, 

 PJiym'itodia interquafolia, and others, in exchange for others 

 new to me.— Address, L. B., Shooter's Hills, near Longton, 

 Staffordshire. 



Wa.vted, well-mounted anatomical injections, transparent 

 and opaque. State what is wanted in return. — Capt. J. A. 

 Perry, 42, Speelow Lane, Liverpool. 



Exchange.— Prepared; Skin of Sole (unmounted) for Scale 

 of Carp. — Miss Edith Meyrick, Downshire Lodge, Blessing- 

 ton, CO. Wicklow, Ireland. 



Cretaceous Fossils of Cambridge in exchange for fossils 

 of other formations.— W. J. S., 9, Victoria Street, Cambridge. 



Transparent sections of fossilized lath wood. Send 

 stamped envelope. Any Microscopic material acceptable. — 

 Address, Charles Butterworth, 4, Sandy Lane, Shaw, near 

 Oldham. 



Carboniferous Fossils in exchange for Devonian and 

 Silurian. — S. Barmingham, Arkendale, Reeth, Yorkshire. 



For Pollen of Digitalis purpurea send stamped envelope 

 to T. H. Martin, 86, Week Street, Maidstone. 



Ten Microscopic objects (well mounted and clean) for 

 well-mounted objects showing anatomy, &c., of Coleoptera 

 and Lepidoptera. For list and particulars address J. W. 

 Barwell, Messrs. Winstanley's, Hujton, near Liverpool. 



Cuticle of Palmyra Leaf (from Ceylon) prepared for 

 polariscope (unmounted), offered for stamped envelope, and 

 any object of microscopical niterest [except botanical). — B. 

 Bellingham, Brierly Hill, Stalfordshire. 



Slides of beautiful diatoms from the Yarrow, Melbourne, 

 Victoria, in exchange for other equally good tlides.— A. N., 

 Fareham. 



Fossil Diatomace.'e, from Caithness (cleaned), very rich 

 in species, for good Microscopic objects; also a few Oolitic 

 fossils, from Sebastopol, for characteristic fossils (mesozoic 

 preferred). — Wm. C. Crawford, Eagle Foundry, Glasgow. 



For section of Sarsaparilla stem, send envelope to Walter 

 White, Dereham Road, Norwich. Any good material ac- 

 ceptable. 



Wanted Hyalonema mirahilis for Euplectella speciosa. — 

 Mr. Hambrook. Stroud Street, Dover. 



Wanted Phasgnnura viridissima (Great Green Grass- 

 hopper) and Spojigilla fliiviatilis (Fresh-water Sponge), for 

 specimens.— Rev. H. H. Higgins, Rainhill, Liverpool. 



Wanted live eggs of Silkworm for Microscopic slides. — 

 J. Barrow, 3, Egerton Terrace, Birch Lane, Longsight, Man- 

 chester. 



Peruvian Guano offered in exchange for good mounted 

 objects.— G. Bowen, 93, Hampton Street, Birmingham. 



C. DUPLARIS, N. C. nif^rum, A. Riifina, O Macilenta, S. 

 Satellitia, PI. Cerago, H. Silago, A. Aprilina, H. Proteus, A. 

 pyramidea, M. Oxycunthip, &c., for exchange. — Joseph An- 

 derson, Jun., Alresford, Hants. 



BOOKS RECEIVED. 



" Contributions to a Flora of Berkshire." By James 

 Britten, F.L.S. 



"The Eighth Annual Report of the Belfast Naturalists' 

 Club." 



" The Zoologist." February. 



" The Canadian Naturalist." 



" The Journal of Botany." February. 



"Annals of Natural History." February. 



"Entomologist's Monthly Magazine." February. 



" The American Nalm-alist." January. 



" Guide to the Crystal Palace Aquarium." 



" Notes on Chalcidise." By F. Walker, F.L.S. 



" Deschanel's Natural Philosophy." By Professor Everett. 

 Blackie & Sons, London, Glasgow, and Edinburgh. 



" Worms : a Series of Lectures on Practical Helmintho- 

 logy." By Dr. Spencer Cobbold, F.R.S., &c. London : J. & 

 A. Churchill. 



Communications Received. —R. B.— F. K.— G. H. 

 W. D. R.— J. A.-C. H.— H. E.W.— H. F. M.— A. H.-E. 

 W. L. N.— W. P.— B. W. F.— J. B.— G. B.— R. S— L. 

 J. J.— A. N.— J. B.-T. H M.— W. J. S.— J. R.-S. C- 

 — E. McH.— H. P.-W. H.-J. S. T.-J. A. P.-J. T.- 

 — C. B.— S. B.— C. K.— W. C— W. A. T.— G. J. L. 

 — R. T. L.-W. H. G.-W. W.— J. H.— H. D.— C. J. 

 Captain P.-J. O.-C. L.— T. B.— A. E— B. B.-F. 

 —A. N. F.— T. W. U.— J. N.— G. H.— Dr. H. F.— G. H 

 G. B. P. (Lynn). 



K.— 

 H. R. 



H.— 

 -P. P. 

 E. M. 



L.— 



D.— 

 J. VV. 

 . H.— 



