HARDWICKE'S SCIENCE-GOSSIP. 



71 



J. C. White. — You are quite correct, it is the bean rust 

 (Trichobosis faba;. Lev.), or \ery likelv the early state of bean 

 brand ; they have bten thought to be both similar. 



J. C. W. (Saltertonl. — The plant is a specimen of Hieracium, 

 but too shrivelled to identify surely. 



B. H. (Sheffield).— The smaller fpecimen, No. 3, is Lycopo- 

 dium dcnticulatum. The ferns are,_No i, Adiantnm cun.a- 

 tutn, commonly known as maidenhair; No. 2, is Pkcgopteris 

 dcpravum, or Aspidium, S\v. 



R. G.— Write to Mr. W. P. ColHns 157 Great Portland Street, 

 London, W., for his catalogue of Microscopic Literature. You 

 will there find a list of nearly all the works on Microscopy 

 extant, with prices, &c. The catalogue also includes all the 

 chief works in other departments of science. 



W. R. Wet IS. — Stark's '■ History of British Mosses," pub- 

 lished by Routledge, at 10s. dd., is the best introduction to the 

 study; or, Cooke's " Hriti-h HepatlcK," is publi^hed by David 

 Bogue, illustrated, in a very cheap form. Hobkirk's " Synopsis 

 of British Mosses," published by L. Reeve, at 10s. 6d. (without 

 illustrations), is a capital handbook when the student is further 

 advanced. You should take in Braithwaite's " British INIoss 

 Flora," now being issued in 2S. 6J. parts by the author. It 

 contains beautiful illustrations. 



R. A. B. — " Srelt" is an inferior kind of wheat grown in 

 France and Flanders. Its botanical name is Tritknm spelia. 



J. S. Watkin. — There is no doubt that the worm you men- 

 tion is the hairworm (Cotdiiis aqnniiciis). concerning which 

 ignor.Tut people hold it is derived from horse hairs. It is the 

 type of the order Gordiacese, and passes its earlier stages as an 

 internal parasite of aquatic intects. For a full account of this 

 creature (with illustrations), see vol. of Science-Gossip for 

 1865, page 107. 



G. F. YouNn. — You will find the subject of the attachment of 

 Epistylis to Cyclops fully debated in Science-Gossip two or 

 three years ago. Mr. Saville Kent also refers to it in the first 

 part of his "Manual of the Infusoria." 



R. Ellis. — You will find the questions you ask concerning 

 the different rharacti-ristics of fungi, lichens, and algee, most 

 definitely and clearly stated in Thome's " Structural and F hysio- 

 logical Botany,' transl:-ted and edited by A. W. I'ennett, D.Sc, 

 and published by Longman. Dr. M. C. Cooke's book on 

 " Fungi " (one of the International Scientific Library Series) 

 is the best of its kind. It is published by C. Kegan Paul at 51-. 



E. A. Brunetti. — You had best obtain the British Museum 

 Catalogue of Diptera. 



R. Brapi.fv.— "The Oologist " is an American publication, 

 published at Rockville, Connecticut. 



H. Hunson. — There are numerous papers on the Geology of 

 Liverpool, published in the "Transactions of the Liverpool 

 Geological Society." 



M. Dixon. — Get "Notes on Collecting and Preserving 

 Natural History Objects," published at 35. dd., by D. Bogue, 

 and study the chapters on " Flowering Plants," &c. 



J. R. — You may get the "American Monthly Microscopical 

 Journal " through any scientific bookseller, such as Mr. W. P. 

 Collins, or W. Wesley. 



G. Baldwin. — We should think you will find all the direc- 

 tions respecting ornithological, &c., classification in the excellent 

 ''Zoological Classification" of Mr. F. P. Pascoe, F.L.S., pub- 

 lished by Van Voorst. 



A. Jenkins.— Woodward's "Manual of the MolIu=;ca" still 

 is, and is likely to be for a long time, the best general work on 

 the subject in our language. 



R. Cpossle\'. — To preserve birds' nests they should first be 

 placed in a hot dry oven, to destroy the moth and eggs. 



N. E. Ballou (Sandwich).— Mr. E. J. Lowe (Highficld 

 House Observatory, Nottingham) has recently published a 

 series of records and observations on cold, hot, rainy seasons, 

 &c., from the commencement of the Christian era to the present 

 time. The Registrar-General publishes monthly health- and 

 death-rate reports. 



EXCHANGES. 



A SPLENDID old Damascus steel sword, handle embossed with 

 gold, also a good old sabre, for eood birds' eggs. — R. Darling, 

 Eyke Rectory, Woodbridge, Sufifolk. 



British birds' eggs. — A small but choice collection -includ- 

 ing golden eagle — in exchange for scientific apparatus. List 

 sent. Offers requested to Dr. Webb, Brougham Terrace, West 

 Derby Road, Liverpool. 



WELL-mounted slides and unmounted material (fungi, 

 starches, &c.) to be exchanged for mounted slides. Also well- 

 mounted selected diatoms for other diatom slides, or good 

 diatom deposits.— P. Z., Lilly Villa, Victoria Park, Manchester. 



DisSECTiNG-CASE of instruments, cost i8j-., exchange good 

 physiological micro slides. P., 76 Blackman Road, Leeds. 



Superior small cabinet, suitable for butterflies, moths, &c , 



13 drawers 8" X 5", cost .£2 \os., exchange physiological micro 

 slides. — P., 76 Blackman Road, Leeds. 



Lepidopte' A in exchange for pupa;. — W. K. Mann, Welling- 

 ton Terrace, Clifton, Bristol. 



I WILL give a clean copy of " Leidy's Rhi^opods" in ex- 

 change for a copy of either " Micrographic Dictionary," or 

 " Pritchard's Infusoria." — H. F. Atvvood, Rochester, N.Y., 

 U.S.A. 



Duplicates of numerous species of Lepidopterse in exchange 

 for others, or good British shells, or birds' eggs. — S. Smith, 

 Castle Street, Walmer, Kent. 



Wantei:), a work on Palaeontology, will give " Introd-.ictory 

 Text-bouk of Geologv," Paae ; "Rudimentary Geology," by 

 Lieut.-Col. Portlock ; and "The Geological K.xaminator," Page. 

 — G. H., 5 Rasen Lane, Lincoln. 



Duplicates : C. diffuiis, C. affinis, C. irapezinn, A. suffusa, 

 X. ferriigittea, and a few others. Desiderata nimierous. 

 Lepidoptera ; or (named) Coleoptera. W. Mackonochie, 47 

 South ftlolton Street, Grosvenor Square, W. 



"French Grammar," " Latin Primer," "Greek Extracts," 

 and Dalzel's " Analecta Graeca Minora," all rather worn. Ex- 

 change for entomological works, or offers. W. F. Clarke, 27 

 Willow Grove, Beverley. 



Primary or secondary fossils wanted, in exchange for Eocene 

 tertiary fossils, or will sell cheap ; list sent. Also sand from 

 Mediterranean, containing foraminifera ; exchange as above. — 

 G. W. Colenutt, 48 Union Street, Ryde, I.W. 



Wantei , during the summer and autumn, good .specimens in 

 flower, or fruit of any Potamogeten, except densus and 

 crispus. Will give specimens of rare species in the same genus, 

 or other rare British plants. — A. Bennett, High Street, Croydon. 



Slides of diatom (Synedra) in exchange for tmcommon insects, 

 plants, or material.— G. Bryan, Fitzwilliam House, Cambridge. 



Wantei , cuttings of clematis (any varieties), and other climb- 

 ing plants, rooted or otherwise, in exchange for flower seeds or 

 Lepidoptera. — R. Laddiman, Upper Hellesdon, Norwich. 



Large cy'inder elettric machine for exchange. Wanted 

 good microscope, or offers. — H. W. Wager, Middle Street, 

 Stroud, Gloucestershire. 



For slide of golden-tail moth, and slide of bramble-brand 

 fungus — both well mounted on wood slides — send other slide to 

 J. Boggust, Alton, Hants. 



SciENCE-Gossip complete to this number, first 6 years bound 

 in half morocco, for con'^enser suitable for Beck's popular 

 microscope, offers. — George Whitehouse, junr., 4 Jlarshall 

 Place, Cheetham, Manchester. 



I HAVE numerous unmounted seeds, forming beautiful opaque 

 obiects for the microscope, such as Eccrentocarpus, Nycterinia, 

 Cineraria, Rampion, Poppy, Antirrhinum, Eutoca, Petunia, 

 Thunbergia, Orache, Calliopsis, Henbane ; which I shall be 

 glad to exchange for mounted objects,— W. H. Newberry, 

 Elm Grove House, Exeter. 



Eggs of dipper, oystercatchcr, common tern, dunlin, red- 

 shank, &c., for other holed specimens not in collection — H. 

 Patrickson, junr., 51 English Street, Cumberland, Carlisle. 



Books on conchology, microscopy, entom.ology, and other 

 branches of natural history, including Cassell's " European 

 Butterflies and Moths" (up to present month), in exchange for 

 works of general literature. For particulars apply to W. Lewis, 

 Mansfield Grove, Nottingham. 



For hairs (unmounted) of black rat, flying fox, weasel, mole, 

 hedgehog, and squirrel, send stamped and addressed envelope 

 to H. C Brooke, Sutton Valence School, Staplehurst, Kent. 



Wanted a rough cabinet specimen of amber. Shall be glad 

 to give micro slides, zoological specimens, or marine objects, in 

 exchange. — E. Lovett, Holly Mount, Croydon. 



Wanted to exchange monthly for reading— Science-Gossip 

 for "Midland Naturalist."— A. G. Wright, Newmarket. 



For exchnge. Wood's "Naturalist's Handbook," and 

 Davies "On IMounting," both new; also a quantity of well- 

 rnounted slides and unmounted material, for other good material 

 and microscopical apparatus. Want a microscope lamp. — 

 J. Blackshaw, 57 Cross Street South, Wolverhampton. 



A smai L quantity of cleaned diatomaceous material, also tuft 

 of Flusira jfoliacea, will be forwarded on receipt of stamped 

 envelope, or object of interest. — I'. Comlidge, 2 Courtney 

 Terrace, Portslade-by-Sea, nr. Brighton. 



Wanted, Taylor's "Aquarium." Will give in exchange 

 "Strange Stories of the Animal World," 2nd edit, (gilt edges, 

 new). — A Fieldsend, Silver Street, Lincoln. 



Rock specimens (Cornish and foreign), minerals, fossils, 

 algae, and marine zoological specimens, ollVred in exchange for 

 books on natural history, microscopic apparatus, slides, or oilers ; 

 back vols, of " Nature " and SciENi e-Gossip especially desir- 

 able. — J. S. Ilsley, Trevethen Terrace, Falmouth, Cornwall. 



Wanted two or three cray-fish (alive for aquarium). Will 

 give Liassic fossils. — W. D. Carr, St. Edmonds, Lincoln. 



A few rare eggs, for others not in collection. — J. T. T. Reed, 

 Ryhope, Sunderland. 



