IQ2 



HARDWICKE'S SCIENCE GOSSIP. 



C. H. G. (Clifton, Bristol).— Thanks for the specimen of 

 Geranium ; it is very interesting, and we trust you will again 

 send anything of the kind. 



\V. HAMBOROUGH.--\Ve are thankful for the Japan honey- 

 suckle, having never before observed it in flower ; your locality 

 must suit it well. 



G. S. (Knison, Wimborne).— It is without doubt the variable 

 Veronica agrestis : your description at once shows it is not 

 polita. It differs very much in habit, &c. 



J. C. (Helston). — Thanks for your interesting notes on Scilly 

 Isles ; we are unable to state the condition of the bean-leaf. 

 The leaf of elder has been noticed very similarly affected this 

 season. We will try to trace reason, then will write to you. 



M. S. (Brentford End). — Although we speak with some un- 

 certainty, yet we should name it Medicago scutellata. Could 

 you allow us to look at the pod? This would settle the diffi- 

 culty. 



R. W. (Westward). — It is Thalictrum montanum, Wall, 

 and R. Bachii. The latter is very imperfect, and thus difficult 

 to determine ; but it is evidently a good variety of Jluitans — 

 possibly a new form. 



M. J. Wilde. — The stone you enclosed was a fragment of 

 Basalt. One of the best books on Conchology is Woodward's 

 " Recent and Fossil Shells," published by Lockwood & Co. 



J. P. G. — See an account of the Origin and Spread of the 

 Potato Disease, in the vol. of Science-Gossip for 1873. It 

 begins with the leaf. 



B. K. — You had best obtain " Botanical Labels," by J. 

 Robson, arranged according to the London Catalogue, and 

 printed (on one side only, for labels) by Hardwicke & Bogue, 

 192, Piccadilly, at 4s. 6d. 



John Hazard. — Your cardboard-box reached us in an utterly 

 smashed condition, and it is a matter for curious speculation as 

 to where the caterpillars are ! 



T. W. B. — No. 1 is not like any diatom we have seen, and we 

 should say it does not belong to that order. No. 2 is Eitnotia 

 diadeina, a form not uncommon in the American subpeat 

 deposits and subalpine gatherings from all parts of the world. 

 The species are, according to Ehrenberg, distinguished by the 

 number of crenations, thus : diodou, triodon, tetraodon, 

 diadema, &c. The largest number of teeth we have seen is 24. 

 Pritchard (Kalfs) unites them all, and names them E. robusta. 

 No. 2 is perhaps Goiiiphonema coronation ; 4, 5, 6, 7, are 

 either sponge spicula or fragments of Radiolarians. 



EXCHANGES. 



Wanted, in exchange for 5-in. bevelled Insect-board, 

 bevelled boards under t\ in. — W. H. Cheesman, Coolinge, 

 Folkestone. 



For either Nitclla translucens, showing rotation of sap, 

 Batrachospermuin ,iuouilifo>me or Chara aspera, send well- 

 mounted Slide, or any of the following : — Cristatella inucedo, 

 Plutnatella repeus, Hydra fusca, Ophrydium versatile, to 

 M. H. Robson, 7, Clayton-street East, Newcastle-upon-Tyne. 



Side-blown Eggs for exchange, — Golden Plover, Ring 

 Plover, Sandpiper, Curlew, Dunlin, Red-shank, Oyster- 

 catcher, Tern, Grey Wagtail, and others. — J. Lancaster, 

 24, Prince's-street, Carlisle. 



An Injection Syringe and twelve parts of Science-Gossip 

 for 1874, for well-mounted Slides, or offers. — A. Alletsee, 11, 

 Foley-street, London, W. 



Will exchange Fossils (including sponge from the chalk) 

 for British Birds' Eggs or Lepidoptera. — J. Wrangham, 93, 

 Tyrvvhitt-road, London, S. E. 



Will give Parasite of Crow, or other insect preparations, 

 mounted in balsam, in exchange for Diatoms, or Insect Eggs, 

 mounted opaque. —J. Horn, 5, Belle-Vue-square, Scarboro'. 



London Catalogue, 7th edition. Nos. 41 and 1620 given in 

 exchange for 44, 280, 346, 455, 392, 395, 495, 496, 484, 557, 615, 

 613, 626, 627, 676, 682, 683, 692, 706, 709, 749, 767, 768, 772, 

 826, 844, 851, 855. 895, 933, 1649, 1659, id 64j 1665.— A. 

 Wheldon, 8, Albion-street, Darlington. 



Wanted, autographs of celebrated English or Continental 

 scientists, or letters. No signatures only, but letters, essays, 

 treatises, or writings of interest. Particularly wanted, letters, 

 &C, of J. J. Audubon the ornithologist. In exchange small 

 specimens of our beautiful Emys picta, a turtle very suitable for 

 Aquaria, or some of our native moths, or anything procurable 

 by a collector here. For anatomists could procure Necturiis 

 lateralis, our representative of the Mexican A.xolotl. — Address, 

 Chas. Mann, 44, Lake-street, Chicago, 111. 



Send object of interest, with stamped addressed envelope, for 

 packet of Eoraminfera from sponge sand, to E. W. Wilton, 1, 

 Northfield-villas, Leeds. 



A few Silkworms (will soon spin) for other objects of interest, 

 shells, fossils, &c. Please state how many required. — Mrs. 

 Skilton, Brentford-end, Middlesex. 



Viola sepincola offered for 101, 156, 159, 467, 535, 544, 598, 

 855. 9°7t 95°. 9S4> 985, 1029,1059 c, 1115, 1133, 1194, 1212, 

 1286, 1295, 1319, 1453, 1655, 1672, L. Cat., Ed. 7.— \V. H. 

 Beeby, 2, Outram-road, Addiscombe, Croydon. 



Orbiculina, from Bermuda, a beautiful object, well mounted, 

 in exchange for other good slides.— J. Ford, Wood-view, 

 Newbridge-crescent, Wolverhampton. 



sEcidium Urticie, sEc. Rauiatculacearum, and Pnccinia 

 Malvacearum to exchange for other unmounted micro-fungi. — 

 List to H. J. Roper, 5, Lausanne-road, Peckham S.E. 



For Snake's-head Coralline {Auguinaria spatulata), un- 

 mounted, send stamped envelope and object of interest to W. 

 H. Skan, 15, Brownlow-street, W.C. 



Wanted Slides or Material (Triceratium Diatoms) and 

 Polyzoa tentacles extended, for well-mounted slides of Alyssum 

 or HippopAae r/ia/uuoides. — E. W. Burgess, 35, Langham- 

 street, London, W. 



First-class Micro-slides offered in exchange for live Water 

 Beetles — Dyticus marginalh, Hydrous piceus, and Acilius 

 sidcatus.— H. Vial, Crediton, Devon. 



A quantity of Cambridge Greensand Fossils in exchange 

 for others, especially Crustaceans and Echinoderms. — John 

 W. Carr, Union-terrace, Cambridge. 



Orchis incarnata and Liuuiu perennc for other rare plants. 

 — John W. Carr, Union-terrace, Cambridge. 



I have a 4-joint Telescope, draws to 17 in., to exchange for 

 Lepidoptera. — G. F. B., 23, Rosemary-street, Islington, N. 



1 have eight numbers of Science for A 11 (from commence- 

 ment up to present month), a capital stuffed squirrel, and good 

 nests of Butcher-bird, Yellow-hammer, and Bullfinch. — Wanted, 

 British birds' eggs, in sets, side-blown, Lepidoptera or store- 

 box ; Natural History books; or offers. — W. Barrett Roue, 165, 

 White-Ladies'-road, Bristol. 



Lond. Cat., Nos. 31, 102, 162, 183, 273, 277, 295, 296, 464, 

 °34> 5i5. 560, 609, 865, 1013, 1053,1123, 1213,1276 1318, 1342 b, 

 1378, 1383. 1411. 1418, 1428, 1462, 1472, 1476, 1527, 1535, 1537, 

 I 538, 1556, 1641, 1657, 1661, and 1666, for 623. 626, 631, 637, 

 640, 647, 649, 657, 658, 663, 676, 691, 693, 698, 725, 733, 746, 

 747. 759. 77 2 > 802, 826, 864, 870, 905, 938, 965, 975, and 1007.— 

 Win. West, Chemist, Bradford. 



Well-mounted physiological specimens in return for any 

 unmounted material of interest. — George Baker, 37, Cross- 

 street, Islington, N. 



Send well-mounted slides of Foraminifera or Polariscopic 

 objects for others, or mounting materials. List sent. — E. 

 Atkins, 200, Essex-road, Islington, London. 



Wanted, Blackwall's " British Spiders," vol. ii., in exchange 

 for Science-Gossip from the commencement, 12 vols., bound 

 in cloth ; or cash. — Address, James Grant, care of Editor of 

 Science-Gossip. 



Wanted, a pure and clean gathering of Volvox globator, 

 (communicate before collecting). First-class slides in exchange. 

 — E. Wheeler, 48, Tollington-road, Holloway, N. 



BOOKS, &c, RECEIVED. 



" West Yorkshire : An Account of its Geology, Botany, Sic." 

 By J. W. Davies, F. L.S., and F. A. Lees, F.L.S. London: 

 L. Reeve & Co. 



"The Physical System of the Universe." ByS. B. Skertchley, 

 F.G.S. London : Dalby, Isbister, & Co. 



" The Creation of Moses and Science in Harmony." By the 

 Rev. Dr. Stewart. London : Eliot Stock. 



" The House of Life." By Mrs. Miller. London : Chatto & 

 Windus. 



" A Science Primer." By Dr. McVicar. London : W. 

 Blackwood it Sons. 



" Phosphates in Nutrition." By M. F. Anderson. London : 

 Bailliere & Co. 



" Science Made Easy." By Thos. Twining. London : Hard- 

 wicke & Bogue. 



"A First Catechism of Botany." By John Gibbs. Chelms- 

 ford : E. Durrant & Co. 



" Popular Science Review." July. 



" Land and Water." ,, 



" Chambers' Journal." ,, 



" The Country " (New York). June. 



" Familiar Science." ,, 



" Potter's American Monthly." ,, 



"Journal of Applied Science." July. 

 &c. &c. &c. 



Communications received up to July Stii, from: — 

 A. J. R. S.-T. H. C— J. W. C— J. C. A.-H. S.-C P.— 



F. W. S.— G. T.— J. S.— M. R. W.— C. L. B — T. W. D.— 

 J. H. L.— J. C— J. A. K.-J. P. S.-A. B. M.— A. J. R. S.— 

 J. F. R.— J. H. M.— E. E. E.— E. W. H.— Dr. R. B— C. P. 

 -J. A. W. — E. W. W.-E. W. A.— J. B. B.— B. M. \V.— 

 R. L. P.— C. M.-J. W. J.— J. T. G.— T. H. C — F. H. A.— 

 Dr. J. S. H.-M. S.— W. H. L— W. H.— G. P.— G. S.— 

 Prof. P.— A. J. R.-D. D.-F. A.— C. M. B.— B. K.— H. W. 

 -S. C. S.— J. H.— W. W. I.— M. S.— J. W. S.— R. A. D.— 

 W. E. R.— H. G. R.— W. B. R.— F. J. B.— G. S.— H. V.— 

 W. H. S.— E. W. B.— J. C— W. S. S.-C. H. G.— W. C. C— 

 A. P.— J. W. C— A. A.— G. F. B.-J. L.— J. W. -W. M. P. 

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

 H. J. I. L.-W. U. B. P.— T. H. C.-W. H. C.-M. H. R.— 



G. F. B — D. W.— J. C— R. W.— M. J. W.—J. P. G.-W. W. 

 —J. I.— H. J. T.— E. A.-H. B.— G. B.— H. T. S.-Dr. E. 

 de C— E. B. G.— &c. &C. 



