96 



HARDWl CKE 'S S CIENCE - G O SSI P. 



NOTICES TO CORRESPONDENTS. 



To Correspondents and Exchangers. — As we now 

 publish Science-Gossip at least a week earlier than hereto- 

 fore, we cannot possibly insert in the following number any 

 communications which reach us later than the 8th of the 

 previous month. 



C. Drinkwater. — The piece of coal you sent has white 

 veins of calcite (carbonate of lime) running through it. 



Arthur. — There is no truth whatever as to limetrees be- 

 having as you say is reported. 



H. D. — For popular information about earwigs, see Wood's 

 " Insects at Home," or " Episodes of Insect Life." 



Pauline. — The virgin ferns undoubtedly went through the 

 antheridial and ,archegonial stages. Those borne as shoots on 

 the fronds, as in the cases you name, do not pass through these 

 stages. 



W. J. Beumont. — The Dytiscits iiiarghialis leave the water 

 in August and fly about, so that it is not singular to find a 

 specimen under the circumstances you name. 



C. F. W. T. WiLLi.VMS. — The slides arrived safely. Many 

 thanks for them. 



T. Bovle. — Your fern is a young specimen of the Northern 

 Hard Fern (_Blechinim horcale). 



T. S.MITH, JuN. — Your insect is not a beetle, but one of the 

 homoptera. It usually lives in fresh-water ponds, but leaves 

 the water for the air at certain seasons of the year. Its name 

 is Nepa ciiwrea. 



E. V. B. — Get Nicholson's "Elementary Te.\t-Book of 

 Zoology," published by Blackwoods, at, we believe, 2S. 



F. F. — Many thanks for your good wishes. 



A. F. — The name of your moth is /'//w/rt, v. rt«rt'7i/« (female); 

 commoner in Ireland than in England. 



F. Quarterman. — The .specimen sent was that of one of 

 our commonest British sponges, called Chalma ociilntn. 



A. Croall (Stirling). — Address M. Gautier himself, at 

 Narbonne, France. 



T. \V. — Your zoophyte appears to be Sertularia r?igosa, but 

 it is anything but a good specimen to identify. 



J. A. — The seed of which you sent a sketch, found in wool, 

 eoes by the name of " The Devil's Horns." Botanists know it 

 bj' the name of JlnrtiHia Moiitcvidiensis. 



G. M. Doe. — The act of spinning, indulged in by certain 

 snails and slugs is well known. See an article by Mr. G. 

 Sherriff Tye, in Science-Gossip for 1874, page 49, on " Mol- 

 luscan threads.'' 



To members of ".Science-Gossip" Naturalists' Clubs, &c. — 

 Will a member of above clubs oblige me with regulations and 

 hints for forming a " Science-Gossip" club ? — John J. Morgan, 

 Tredegar. 



Miss Spark es. — The moss from the Arctic regions is 

 Distichiiiin caJ>iUaccum. 



G. A. Holt. — Your mosses are: — i. Griiinnia pulvlncita ; 

 2 and 5. Ceratodoii purpurciis ; 3. Orthotrichujn anovtaluin ; 

 4. Tortilla sulndafa. 



R.- R. T. — Your specimens are : — i and 3. P/iyscomiti-hun 

 pyyiforme ; 2. Rkacomitruan lietovsticliitm ; 4. Orthotriclinnt 

 cupulatutn ; 5. Griminia apocarpa,\2.r. rividaris ; 6 and 7. 

 Orthotridiinn affinc. 



J. PERCIV.A.L. — Your moss is probably Bryjcni petidiihiiii. 



R. G. — The following are the names of your mosses : — i. 

 Rliacomitritim lanugiiwsum ; 2. Dicfainiin /uscesce7is ; 3. 

 D. scopariian ; 4 and 5. Hypiium iriq7iet7'nin ; 6. H. 

 ciispidatnnt ; 7. H. sfrlendois; 8. Bartrnjuia /oninjin ; 9. 

 Hypmtm iorertin ; 10, is a flowering plant, probably 3.Sagiiia ; 

 II. Tortitla tortiiosa ; 12. Bariraiitia potniJbriius.—'R.'R.'ij. 



H. A. (Cannes). — The names of the two species you enclose 

 are : No. i with a dark-looking hood over the long spike of 

 real flowers, is a Cuckoo-pint, Arum Arisarntn, L. No. 2, 

 with the light pink-lipped corolla, is a Hen-bit, or Galeopsis 

 angjistifolia. 



J. H. G. (Gravesend). — We have never noticed the Gei- 

 scmiinivt as a garden or cultivated species ; so we should judge 

 it is a 'Jasininiiin you have observed.— J. F. R. 



G. C. D. (Northampton). — Thanks for specimen of Linaria 

 spuria ; it is a true " peloria," at least several flowers are thus 

 transformed. The Khyiicospora is what we have always 

 regarded as the typical form ; all our herbarium specimens are 

 similar. IThe grass is Glycerin aguatica. Linaria ?ni>!or — yes. 

 Ergotized e.vample is very interesting. A short paper upon this 

 with drawing will probably appear soon in our pages. 



EXCHANGES. 



W.\ntkd, the rarer British or any Foreign Algse, Mosses, &c. 

 for others. — A. Croall, the Smith Institute, Stirling, Scotland. 



Offered, ist Vol. of " Cassell's Book of Birds," including 

 Parrots, Pas.seres, and Ravens (7s. 6d.), and Ramsay's 

 Mineralogy (3s.), both nearly new, for a book on British 

 Birds.— D., 78, Claverton-street, London, S.W. 



Wanted, Fleas and Parasites from Bats, also Ixodes (Ticks) 

 from foreign animals : good slidesor books in exchange. — H. E. 

 Freeman, 48, Woodstock-road, N. 



Wanted, to exchange with American, Continental, and 

 Colonial Collectors, British Land and Fresh-water Shells, for 

 foreign ones, either land, fresh-water, or marine. Also the 

 first seven vols, of Science-Gossip to purchase. State lowest 

 price in cash. ^ Address, H. Crowther, Philosophical Hall, 

 Leeds. 



Wanted, a few specimens illustrative of deep-sea formations, 

 mounted or otherwise ; also of marine zoology ; a variety of 

 similar objects for exchange. — Edwd. Lovett, Holly Mount, 

 Croydon. 



Well-mounted Slides of Tous les Mois Starch, Hair of 

 Esquimaux Dog, and others, to exchange. — Edwd. Howell, 

 Yeovil. 



Wanted, the Three first Volumes of Science-Gossip, for 

 years 1865, '66, and '67. Also those foi years 1872, '73, and '74. 

 — Dr. Cunynghame, 6, Walker-street, Edinburgh. 



I AM desirous of having Australian Eggs. I can offer British 

 and also a few North American eggs. The commonest species 

 accepted, if neatly blown ; mine are side-blown. Australian 

 correspondence invited. All letters answered. — T. W. Dealy, 

 142, Clarance-street, Sheffield. 



Fine duplicates, early this month, of Gothica criida, &c. 

 Wanted, in exchange, old edition "Merrin's Calendar," or 

 back numbers Science-Gossip. — J. T. Willis, Adwick-le-street, 

 Doncaster. 



Wanted, in exchange for eighty distinct and well-dried 

 .specimens of exotic Ferns, including species of the genera 

 Hyiiicnophylluiit, Triclwniaties, Deparia, Gleichoiia, &c., 

 all correctly named, — British Shells (rarer kinds), several speci- 

 mens of each species, or British tossils; the former preferred, 

 especially the Helices. — A. B., 12, EUesmere-road, Victoria- 

 park, London, E. 



Wanted, the Back Volumes of Science-Gossip. Other 

 books given in exchange ; a list will be sent. — W. T. E., i. The 

 Prairie, Lowestoft. 



British and foreign Butterflies wanted in exchange for Trap- 

 door Spider's Nest, and the Adult Spiders of Nemesis meri- 

 dioiialis 3.\\A. Nemesis Eleanora. — Address, Miss Maulere, 15, 

 Queen-street, Mayfair, London, W. 



Will give specimens of Himalayan Ferns, about thirty kinds, 

 to any one who will name them correctly for me. —J. A., 2, 

 Oriental-place, Brighton. 



Journal of the Chemical Society for the past yeai- 

 off"ered for other books. — W. A. Law, 11, \, Abington-street, 

 Northampton. 



Nos. 551, 873, 162, and 1652 Lon. Cat. 7th ed., and PlanLs 

 from Goza (unnamed). Wanted : Nos. 873/, S74, S74/, 875, 876, 

 and others. — Tom Watson, 54, Bank-parade, Burnley. 



For Trollius Eiiroptpm,, Anemone apcnnina, Myosurus 

 minimus. Ranunculus con/usus, R.Jicaria, with bulbils and 

 fruit, — Daphne lanreola. Send stamp and address to W. G. 

 Piper, 70, London-street, Norwich. 



Anchors and plates of Synapta in arranged form, in ex- 

 change for good Slides. Send list. — W. Nash, 11, London- 

 road, Reading. 



Wanted, Two examples, dried, oi Festuca sylvatica. State 

 .Susse.x plant desired in exchange. — F. H. Arnold, LL.B. , 

 Fishbourne, Chichester. 



Cellularia avicularis, sJicnving biriVs-Jiead processes. I 

 have a few Slides of the above, and should be pleased to ex- 

 change one of same for other good slide. — J. Wooller, 7, Farm- 

 road. Hove, Brighton. 



Berthon's Dynamometer, with Lens (for measuring the 

 power of any Telescope, and gauging glass covers of any thick- 

 ness) offered for six good slides. — T. H. Baff'ham, Clarendon- 

 road, Walthamstow. 



Wanted to exchange. Shells from Limax larjis, Testncella 

 Maugei, or Vertigo edentula, Vertigo pygimea, Limtiiea 

 peregra (white shells, which are rare), for either Testncella 

 haliotidea, Limax gagates, Gcomalacus inaculosns, or Vertigo 

 Moulinsia>ia, V. alpestris, V. sid^striata, V. pusilla, V. 

 angustior ; no other sorts will do. — J. Whitenham, Cross-lane 

 Marsh, Huddersfield. 



.Wanted, Helix lapicida, var. albida. In exchange offered 

 Unio tumidus, var. oz'alis, and other rare species. — Address, 

 Miss F. M. Hele, Fairlight, Elmgrove-road, Cotham, Bristol. 



Figuier's "Vegetable World," cost -js. 6d., nearly new; 

 would like to exchange for a work on Entomology. Offers 

 requested. — Henry Jones, Hawley, Farnboro' Station. 



Vol. I. of Cassell's "Popular Natural History," unbound, for 

 Pupa; (living) of Machaon. — C. Swatman, Mr. Feldwick's, 

 London-road, .Sevenoaks, Kent. 



Fossils from the Chalk and Gault, and British .Shells, ofl'"ered 

 for foreign shells. — Address, M. M., Post-office, Faversham. 



For Mounted Palates of Ancylus Jluviatilis .send other 

 well-mounted slide ; named diatoms preferred, or good 

 materials. — M. Fowler, 20, Burn-row, Slamannan, N.B. 



Butterflies and Moths from Madagascar, Opals and other 

 precious stones, and Exotic Shells to exchange for good micro- 

 scopic slides. — G., 18, Elgin-road, Harrow-road, London, W. 



Dumeril's "Sciences Naturelles," 2 vols., for good micro- 

 slides.— F. W. Phillips, Maidenhead-street, Hertford. 



In Mr. T. Brittain's exchange of last month the word 

 " Wanted" should have appeared before " UtricuKaria, &c." 



