2l6 



HARDWICKE'S SCIENCE-GOSSIP. 



F. L. St. A. (Hants).— The shrub labelled No. i is a Buck- 

 thorn {Rhamnus Frangula, L.), and the other specimen is very 

 imperfect, and too small to judge correctly ; but we believe it 

 to be Calamintha Nepeta. Many thanks for your kind note 

 respecting orchids. 



B. M. W. (Treaddow). — We detected only one rust, or clus- 

 ter, at the margin of one of the leaves, which is undoubtedly 

 Trichobasis Geranii, B., but we believe it is attacked by an- 

 other fungus unknown to us ; but it is immature, therefore 

 difficult to decide in its present state. 



G. A. H. (Manchester). — It is what we have recognised as 

 Chara hispida; however, we confess they are too little studied, 

 and very little seems to be known about this class of plants. 



C. H. Bould. — Your plant is the Soap-wort (Saponaria 

 officinalis). 



W. H. Legge. — We have forwarded your account of "a 

 strange bird " to several first-rate ornithologists for identification, 

 but all, without exception, state they cannot make anything out 

 of it. 



G. S. Barnes. — See an account of your peculiar malfor- 

 mation of cabbage-leaf in present number. 



E. E. Evans. — Your eggs were completely smashed when 

 they reached us, so that it was impossible to name any of them. 



W. E. Richardson. — We have received the Trilobite, which 

 is a fine specimen of Calymene Blumenbachii. What you took 

 to be a "fin" is merely the rim of the cephalic shield. The 

 Trilobites being Crustaceans (allied to King-crabs) did not 

 possess " fins." 



R. H. N. Browne. — The eggs grouped on the backs of oak- 

 leaves are not those of Coccus, but of a species at Aphis. Two 

 of them hatched whilst the leaf was under the microscope, so 

 that the aphides were visible. 



A. Lury (Southampton). — The white substance you sent us 

 from the bark of a young Scotch fir is not a fungus, although 

 it was formerly considered, and even described, as such, under 

 the name of Psilonia nivea. It is of animal origin, however, 

 like the "Apple-blight," and formed by an insect, a species of 

 Cynips. 



E. C. — From your specimens we can only make out the 

 male and female of the common gnat (Culex pipiens) ; except 

 that they are smaller specimens than usual under the micro- 

 scope, they exhibit all the characters of the common gnat. 



S.— -It is Mr. Lankester's "Wild Flowers worth Notice " to 

 which we referred. 



F. R. S. — Prof. Hull has already published a work on the 

 Geology of Ireland, and another and a fuller work on the 

 same subject by Mr. G. H. Kinahan is about to be published. 

 See papers called " Sketches in the West of Ireland," by Mr. 

 Kinahan, in Science-Gossip for 1873, 1874. and 1876, giving 

 archaeology, botany, and geology of the district. 



J. Cass. — A potato tuber is only an underground bud ; and 

 the monstrosity you sent us is not an unfrequent one, as it con- 

 sists of pseudo-tubers, or buds, forming at the base of the leaf- 

 stalks. We have seen several examples this summer. 



J. A. Floyd. — The specimens sent us from Cambridgeshire 

 are of Lower Cretaceous age, but, perhaps, not sueh excellent 

 phosphates as the so-called " coprolite " stones, on account of 

 their containing a large percentage of iron oxide. No. 1 are 

 the teeth of Spherodus. 2. Tooth of Saurian, probably Cam- 

 py/osaurus. 3. Ammonites lautus. 4. Tooth of Saurian. 

 The others are fragments of fossil wood, impressions of A mmo- 

 nites, casts of chambers of A mmonites, &c. 



EXCHANGES. 



To dispose OF. — Eleven volumes of the Pateontological 

 Society's publications, viz., for the years 1848 (2), 1849 (2), 

 1850, 1851, 1852, 1862, 1863, 1864, and 1865 ; also a Ten Guinea 

 Smith & Beck microscope. — S. J. B., Rectory, Beaconsfield, 

 Bucks. 



WELL-rooted plants of good varieties of Ferns, blooming 

 Greenhouse Plants (not bedding), and Cacti, in exchange for 

 rare British and foreign Shells, polished Stones, and Fossils. — 

 Address, F. R. E., 82, Abbey-street, Faversham, Kent. 



Wanted in exchange for Lepidoptera, or a small hand 

 Printing-press, British Birds' Eggs, side-blown.— R. Cross- 

 key, Castlegate, Lewes. 



WELi.-mounted Slides of Foraminifera (Lagiua), or Diatom 

 (Campy lodiscus cyp.), in exchange for good Mounts, not 

 Polariscope. — A. Alletsee, n, Foley-street, London, W. 



Wanted, unmounted, scales of fish, palates of mollusca, 

 spines of star-fish, parts or entire foreign beetles and butterflies, 

 stained anatomical and vegetable preparations, zoophytes, wood 

 sections, sori, mosses, marine alga;, fungi, and micro-geoiogical 

 specimens. Good exchange offered. — Alpha, 16, Brunswick- 

 street, Blackwall, London, E. 



Botanical exchanges desired. —Send lists to F. W. E. S., 

 Hadlow, Tunbridge. 



Birds' eggs, side-blown. Having collected during late tour, 

 can offer collectors many extreme rarities in exchange. — 

 •Sissons, Sharrow, Sheffield. 



To American Entomologists. — East Indian, African, and other 

 ■exotic Butterflies sent in papers in the finest condition and 

 good species for Cocoons of Cecropia, Luna, To, Polyphemus, 

 and Cynthia. — William Watkins, 36, Strand, London, W. C. 



Offers.— " Lond. Cat.," 7th ed., Nos. 81, 82, 97, 100, 133, 

 141, 145, 280, 296, 301, 316, 319, 326, 354, 369, 373, 376, 491, 

 531. 564, 612, 622, 627, 753, 761, 917, 984, 1147, 1 160, 1241, 

 1317, 1447, 1448, 1502, 1577, and many others, in exchange for 

 British Mosses or Flowering Plants. Lists exchanged. — W. E. 

 Green, 24, Triangle, Bristol. 



Cerastium holosteoides, Listera cordata, y uncus triglumis, 

 Herniaria subciliata, &c, for 101, 103, 153, 202, 309, 358, 374, 

 404, 477, 481, 526, 767, 1046, 1082, 1438, 1484, 1507, 1521, &c— 

 G. C. Druce, Northampton. 



For unmounted Scales of Carp, Sole, Perch, Roach, Pike, 

 and Haddock, send unmounted Object to J. Moore, 12, Por- 

 chester-street, Birmingham. 



Micro-Fungi. — Wanted, unmounted Specimens of the order 

 yEcidiacei, first-class slides or material for good specimens 

 only. — Dr. Marsh, Duke-street, St. Helens. 



For mounted Chelifer muscorum send a well-mounted Slide 

 (named diatoms particularly wanted), to George Turvill, East 

 Worldham, Alton, Hants. 



Wanted. — Set of the Human Eye : Optic nerve, cross and 

 per. sect. ; sclerotic coat, sect. ; cornea, sect. ; retina, sect. ; 

 chrysaline capsule ; iris ; ciliary process ; choroid coat, long, and 

 trans, sects. ; eyelid, with hair on eyelash. Will give Geo- 

 logical Transparent Slides in exchange. — Address, M. Fowler, 

 45, Burn-row, Slamannan, N.B. 



Mammalian Fossils from the gravel and caves, in exchange 

 for others. — W. G, 10, Newcastle-street, Tuxford, Newark, 

 Notts. 



All or part of Design and Work, cost 4s. iod. ; English 

 Mechanic, 5s. ; Fancier's Gazette, 6s. 9d. , for back numbers of 

 Science-Gossip, or offers. — E. V., 41, Peckham-grove, S.E. 



Spines of Amphidotus cordatus and Algae, with Diatoms in 

 situ, in exchange for other objects of interest. —J. Wooller, io, 

 Farm-road, Hove, Brighton. 



Anatomical sections, mostly human ; lung, heart, liver, &c. 

 Will send some in exchange for any well-mounted objects. — 

 C. P. White, the Priory, Lewisham. 



F. atomaria, piniaria, P. rota, and others, in exchange 

 for Moths, Plants, Mosses, or Shells. — R. Renton, Fans, 

 Earlston, N.B. 



A large case, containing two well-stuffed Squirrels ; also a 

 preserved stuffed Snake (Python), to exchange. Wanted, side- 

 blown British Birds' Eggs, Natural History Books, or offers. 

 Correspondence invited, all letters answered. — W. Barrett, 

 Roue, 165, White Ladies'-road, Bristol. 



NEATLY-finished Slide of Scorpion Fly, mounted whole, 

 offered for good Slide of picked Diatoms, or Diatoms in situ. 

 — J. Neville, Wellington-road, Handsworth, Staffordshire. 



To Conchologists resident at home, abroad, or in the colo- 

 nies. — Having Duplicates of nearly a hundred species of the 

 British Land and Fresh-water Shells, including many of the 

 rarer Vertigos, such as subslriata, antivcrtigo, alpestris, 

 pusilla, and augustior. Will be glad to exchange these for 

 Foreign or Colonial Shells, equally good, either land, fresh- 

 water, or marine, or would exchange foreign duplicates only for 

 the same. — W. Sutton, Upper Claremont, Newcastle-on-Tyne. 



Good side-blown Specimens of the following Eggs for ex- 

 change : — Cormorant, Puffin, Sandwich, Arctic and Common 

 Terns, Dunlin, and Eider Duck, Desiderata : other good Eggs 

 or Lepidoptera. Send offers. — John D. Walker, 21, Holly- 

 avenue, Jesmond, Newcastle-upon-Tyne. 



BOOKS, &c, RECEIVED. 



" Science pour Tous." 



" Land and Water." July. 



"Journal of Applied Science." July. 



"The Natural History Journal." 



" Potter's American Monthly." June. 



"American Naturalist." ,, 



"Chambers' Journal." July. 



"Ben Brierley's Journal." July. 



" Botanische Zeitung." 



" Collecting Butterflies and Moths." By Montagu Brown. 

 London : Bazaar Office. 



Appendix to " Contributions to Natural History." By 

 James Simson. 



&c. &c. &c. 



Communications received up to 8th ult.. from: — 

 S. A. B.— H. T. G— Prof. B. A. T.— H. W. S. W. B.-G. T. 



— H. C. C— T. B.— E. C— E. W.— V. C— J. G— T. G. B.— 

 G. H.— R. H.— C. H. B.— G. T. B.— G. S. B.— W. G. P.— 

 Dr. E. de C— G. C. D.— E. B. S.— A. F. G.— R. H. N. B.— 



- F. K. — C. P. O. -F. B. N.— F. R. M. — J. W. S. — 



F. W. E. S.— A. J. R.— J. M.— W. E. G— W. W.— H. C. C. 

 — R. G. C— J. C. C— R. G— Dr. M.— M. S.— W. H. N. - 

 A. A.— G. C.-C. E. R.— H. E. W.— M. J. W.— R. C— 

 E. R. F.— S. J. B.— Dr. M.— M. H. R.— J. S.— P. T.— 

 J. D. W.— W. S.— J. N.— F. R. S.— H. L.— J. G. G — 

 W. L. B.— W. M. C. C. S.— W. B. R.— H. M.-F. H. A.— 

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



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

 C. C— &c. &c. 



