u 



HARDWICKE'S SCIENCE- GO SSIP. 



NOTICES TO CORRESPONDENTS. 



J. W. (Dukinfield). — No. ] is Erysimum cheiranthoides, L. ; 

 No. 87 in the Seventh Edition of London Catalogue of British 

 Plants. No. 2, Cotula cormtopifolia, L. ; not a native of the 

 British islands. It was probably introduced with agricultural 

 seeds. We have found many species on manure-heaps and 

 around the border of fields introduced in this way. — R. 



J. K. (Pillgweally, Newport).— You are quite correct, it is 

 Zinaria repens, but the second specimen was crushed to 

 small atoms, so that we can scarcely tell it is a Centaurea. 

 Could you not in future dry the specimens sent to us for 

 identification ; if partially dried, they come to hand in ex- 

 cellent condition. We have tried hard to make out the 

 species, but cannot state, with any degree of certainty, in its 

 present mutilated state.— R. 



W. D. E.— The object which caused your midnight alarm 

 was the Great Water-beetle (Dytiscus marginalis). No stamps 

 were inclosed in your letter. 



Lignite. — We have received several specimens through 

 the kindness of several correspondents. If J. Sims will send 

 us his full address, we shall be glad to forward them. 



C. calcitrapa — Dr. Morton has asked us to state that 

 pressure on our space delayed the insertion of his communica- 

 tion until the Yellow Centaurea had done flowering ; he hopes 

 to find it again in the coming summer, and to forward speci- 

 mens to each applicant. 



H. J. McG.— It is impossible to extend the Correspondents 

 column, as it would not be fair to exclude information 

 intended for the thousands of our readers in order to relieve 

 the difficulties of one. We are forced, therefore, to fall back 

 on the courtesy of our correspondents, 



W. H. — Your plants arc : — 1. Quercus ilex ; 2. Podocurpus, 

 Sp. ; 3. Melaleuca, Sp. ; 4. Colletia eruciata. 



W. Mac.millan. — Your wasp was undoubtedly a variety of 

 Vespa vulgaris. This germs is a very variable one. In your 

 too brief description of your specimen you should have men- 

 tioned the sex, and whether the basal joint of the antenna; 

 was black or yellow. — J. B. B. 



J. L. G.— The bird you call " Fire tail" was the Redstart 

 (Ruticilla phcenicurus, Lin.). 



R. M. — Rhytisma acerinum, a fungus ; nothing of interest 

 as a microscopical object. 



C. C. U. — Uredo filicum, not uncommon on ferns. — 

 M. M. C. 



G. Parsons. — 1. Aulacomnium androgynum. The others 

 are correct. 



T. B. — 1. Poly trichum commune } 2. Dicranum scoparium ; 



3. Atrichumundulatum ; 4. Dicranella heteromalla ; 5. Tortula 

 unguiculata ; 6. Orthotric.hum anomalum. — R. B. 



Minnie D. Read. — Your shells are: 1. Littnrina littorea 

 (yellow variety) ; 2. Columbella mercaturiu ; 3. Neritaundata; 



4. Cerithium ; 5. Nerita ; 6. Ultra. 



Nolens. — " Grevillea," the journal of Micro-botany, 

 edited by M. C. Cooke, is now published quarterly, instead 

 of monthly, as formerly. 



T. Wilson (Aberdeen).— Coloured sheets, each showing 

 the British poisonous and edible fungi, are published by 

 Hardwicke, 1Q2, Piccadilly, London. 



C. H. Griffith.— We believe the " Lepidoptera of New 

 South Wales," was published in Sydney. The work, which is 

 by Mr. Cox, was published in parts at one guinea each. 



J. Greenfield. — Get Cooke's "Structural Botany," of 

 which a new and enlarged edition is just published by Hard- 

 wicke, 192, Piccadilly. 



T. O. Newton (Birmingham). — We could not identify No. 1 

 specimen, it was so crushed. No. 2 is selenite ; 3, green 

 fluor spar; 4, sulphite of zinc, commonly called by the miners 

 " Black Jack," to distinguish it from " Blue John," the dark 

 kinds of fluor spar. 



John Wkbb. — The Cambridge fossils most likely come 

 from the so-called " Coprolite Bed," at the bottom of the 

 chalk j the Leicester fossils are probably Liassic; those ifrom 

 Lcighton Buzzard may be Gault. For these, refer to the 

 '• Chart of British Fossils," by Lowry, published by the 

 Christian Knowledge Society. London Tertiary fossils are 

 illustrated by another special chart by the same author. The 

 peat at the East London Railway is probably theold " forest- 

 bed" of the Thames, but a lignite-bed in the "Woolwich 

 Series" might also be found there. See Mr. Walker's 

 Saturday " Hall-holiday Rnmbles," for an account of the 

 forest-bed.— W. W. 



Correspondence and Exchanges wanted in Terrestrial 

 and Marine Conchology with American, Continental, and 

 Colonial Conchologists, by Frederick Robertson Martin, 97, 

 Union- street, Torquay, S. Devon. 



Duflicatks : Ligustri, Citragu, Nvptn, Maura, Bvc-phala, 

 Progemmaria [(males), Atalunta, &c. Desiderata: Ova and 

 Pupie. — W. Harper, Norfolk Park, Maidenhead. 



Pliyscnmitrium upliaricum, B. and S., for other rare Moss. 

 — W. H. Pearson, Seedley Cottage, Pendleton. 



Fob well-mounted slide of Silver Ore, Utah, rare, send 

 other good interesting Slide. Others to exchange. — W. Tylar, 

 165, Well-street, Birmingham. 



Wanted, all kinds of Micro Material; good mounted Slides 

 in exchange. — A. Quayle, 182, Regent-road, Liverpool. 



For Cuticle of Yucca, send stamped directed envelope to 

 W. H. Gomm, 2, Oak Villas, Mattock-lane, Ealing. 



Well-mounted Objects exchanged for Parasites and their 

 Eggs. Sead list to John Boyd, Victoria Park, Manchester. 



For Rotalina fi.ram., from Atlantic Soundings, mounted, 

 send good Slide to H. C, 24, Rodney-street, Liverpool. 



For specimen of Alvin (for the Polariscope), send stamped 

 directed envelope to J. Coles, 248, Kiug'a-road, Chelsea. 



Mounted Diatoms for other mounted Objects, or good 

 unmounted. — R. M., Post Office, St. Andrews, Fife. 



Wanted, Foreign Algae, especially the Coral'.inacea;, for 

 Flowering Plants, Ferns, or other Cryptogams, by A. Croall, 

 Smith Institute, Stirling, Scotland. ~ 



Hair of New Zealand Tree-fern, Stellate Hairs fromSeedpod 

 of Arbutilon, and many others. — Send list to C. C. Underwood, 

 25, Gloucester-place, Portman-square, W. 



Wanted, Vols. 1, 2, 3, 6, and 7 of Science-Gossip, for 

 Vols. 3, 4, 5, 11, 12, 13, and 14 Cornliill Magazine, unbound. — 

 J. Webb, 17, Sandbrook-road, Stoke Newington. 



A few pairs of Ilurex tribulus (Thorny W r oodcock), for 

 Fossils, Shells, or other objects of interest.— M. S., 133, High- 

 street, Chatham. 



For washed or unwashed Dust from Hollow Flints, send 

 stamped directed envelope to Rev. J. Greenly, Laverstock, 

 Salisbury. Any microscopic material acceptable. 



For sections of Charob seed, a good Polariscope Object, and 

 Morva seed, showing Oleo-resin Cells, send stamped envelope 

 and object of interest to R. H. Philip, 23, Prospect-street, 

 Hull. 



Feet of Dytiscus marginalis, showing the Suckers (mounted 

 opaque), and Palates of Whelk, Limpet, and Periwinkle, 

 prepared for mounting, for other good mounted Objects. — 

 C. A. Grimes, 8, Craflord-street, Dover. 



Withebing's "British Botany" (Eighth Edition), cost 

 10s. (id., for British Birds' Eggs, Coleoptera, Lepidoptera, or 

 British Land or Fresh-water Shells. — F. M., 40, Bengal-street, 

 Bradford. 



Foraminifkrous Sand from Dag's Bay and twenty other 

 localities, various interesting Marine Material lor micro 

 objects, Alga;, Diatoms,'' Storm-tossed Scraps, Animal Para- 

 sites, Ferns and Rockwork Plants, carriage free, and several 

 other things, for contributions towards the purchase of a 

 good Microscope or Accessories. — T. McGann, Burrin, 

 Ireland. 



EXCHANGES. 

 Shells from Devon coast offered for Continental, Marine, 

 La id, and Fresh-water Species. Lists exchanged.— Martin, 

 97, Ui ion-stnet, Torquay, S. Devon. 



BOOKS, &c. RECEIVED. 



" Economic Geology." By Professor D. Page. London : 

 W. Blackwood & Sons. 



"Reports of the Department of Agriculture" (United 

 States), 1872 and 1873. 



" Grevillea." December. 



"Journal of Applied Science." 



" Les Mondes." 



" British Hepatica;." Part 3. 



" Botanische Zeitung." 



" Astronomical Register." December. 



"American Naturalist." 



" Science at Home." By W. B. Woodbury. 



Correspondence Received up to 12th ui.t. from : — 

 M. H. R.— C. H. G.— Dr. C. C. A.— G. «.— J. F. R.— J. J.— 

 F. C— A. Q.— T. M. G— C. A. G.-R. M.-J. P -J. G. P. V. 

 — F. R. M.— F. H. A.- J. S. H.— W. D. E— W. H.— J. P. G.— 

 R. A. B— C. W. C— W. H. P.— A. C— J. P.— E. M. P.— 

 C. W. C— H. J. McG. -Dr. M— J. W.— J. M— H. E. W.— 

 H. J.— J. L. J.— A. ll.-E. E.— T. B. W.-F. K— M. C— 

 J. E. T.— M. K.— H. U— Dr. C— J. F. R.-E. P. C— T.S.— 

 M. D. R.— F. M.— R. T. L.— R. H. P.- H. C— C. C. U.— R. G. 



— H. L— C. S— A. E. C— T. G. P. Y.— W. H. P.— W. H. B. 



- R. S. L— S.J.McL— W.T.--W. H.— J.B.— J. C— W. H.G. 

 — F. J. A— J. G. E.— J. G.— T. O. N.— G. P.-T. B.— R. R.— 

 R. S.— M. D. R., &c. 



