Ixxxvi 



HARDWICKE'S SCIENCE-GOSSIP. 



Ovaries, Leaf- Buds, Flower - Buds, &e. 



All the Parts in situ. 

 T.S. Ovary, Marsh Epipactis, " Epipactis palustris " ... 

 T.S. and L.S. Ovary, Foxglove, " Digitalis purpurea " 



T.S. Leaf-bud of Sycamore, "Acer Pseudoplatanus " 



T.S. Leaf-bud of Ash, " Fraxinus excelsior " 



T.S. Flower-bud of Iris, " Iris Germanica " 



T.S. Flower-bud of Lily. " Lilium croceum " 



T.S. Flower-bud of Passion Flower, " PassiRora casrulea " ... 



ABRM. FLATTERS, 54, Croft-st., Openshaw. 



FOSSIL MICROZOA FOR STUDENTS ; 

 18 Species on each Slide ; post-free, is. qd. Polyzoa, Silu- 

 rian, Carboniferous, Oolitic, Tertiary and Recent. Also Polyzoa, 

 Entomostraca, Foraminifera, &c, mixed, from similar formations. 

 All named.— G. R. VINE, Attercliffe, Sheffield. 



New and Interesting- Species of Shells 



Froisi Borneo, Lake Tanga?iyika, and the Philippine Islands. 



COLLECTIONS PURCHASED. SPECIMENS EXCHANGED. 

 MANUFACTURER OF GLASS - TOPPED BOXES, &c. 



Foreign Correspondence Invited. 



HUGH FULTON, Dealer in Recent Shells, 



S9, FULHAM ROAD, LONDON, S. W. 



NOW READY. My New Illustrated Catalogue of 



MICROSCOPICAL REAGENTS 

 AND MATERIALS. 



Price 3d., but will be sent FREE to all applicants during the 

 current month. 



C. H. HESKETH "WALKER, Micro-Specialist, 



12, CHURCH STREET, LIVERPOOL. 



MASON'S LANTERN AND TABLE 



(Patait applied for.) MICROSCOPE. 



FOR SCIENCE TEACHERS, LECTURERS, 

 or PRIVATE EXHIBITIONS. The cheapest and most 

 effective instrument ever produced. See Science-Gossip, February 

 1891 ; English Mechanic, December 5th, 1890. Full description 

 from R. G. MASON, Manufacturing Optician (from J. Swift), 69, 

 Clapham Park Road, Clapham, S.W. 



S- LOUIS'S 



$ei^ies of Picro^copio^ix Objects. 



Above 70 Series of Unmotmted Objects at 2s, each Series, ready 

 for mounting. Also 12 Series of Unmounted Cleaned Diatoms, at 

 3s, each, 12 tubes in each. Also above 50 Series of Mo7tnted Slides, 

 beautifully mounted on 3 X 1 Slips. The Mounted Slides are in 

 Series of 12 for 5s. Also 15 Special Series of Mounted Slides, 6 

 in each Series, at &s. each. 



12 SPREAD DIATOMS (nearly pure.) 

 Series 2.-5/-. 12 Slides. 



Pleurosigma curvulum. 

 Gomphonema subclavatum. 

 L.icmophoia tincta. 

 Cocconeis excentrica. 



,, pediculus. 

 Amphora proteus. 



Synedra crotonensis. 

 Rhizosolenia robusta. 

 Coscinodiscus concinnus. 

 Asterionella formosa. 

 Synedra affinis. 

 Tabellaria flocculosa. 



12 SPREAD DIATOMS (nearly pure.) 

 Series 3—5/-. 12 Slides. 



Cyclotella Bodanica. 

 Rhoicospha;nia curvatura. 

 Himantidium pectinate. 

 Navicula scopulorum. 

 Leptocylindrus danicus. 

 Diatonia vuli*are. 



Cocconeis placentula. 

 Navicula minima. 

 Homceocladia Vidovicliii. 

 Licmophora Ehrcnbergii. 

 Meridion circulare. 

 Fragilaria virescens. 



Sole Agent: Wm, WEST, 15, Horton Lane, Bradford. 



Send Stamp for Catalogue of 40 Pages. 



TO MUSEUMS AND PRIVATE COLLECTORS. 



W. K. MANN, NATURALIST, 



(Established 1868,) 

 WELLINGTON TERRACE, CLIFTON, BRISTOL, 



Has now for sale, at reduced prices, one of the largest and most 

 authentic selections in this country of BIRDS' EGGS, in 

 Clutches and with Nest. BIRD SKINS. British and EXOTIC 

 ■L EPIDOPTERA , and Insects generally. Splendid Stock. 

 FOREIGN SHELLS, Natural History Books, CABINETS, 

 and Apparatus. Selections of Shells and Insects, sent on approval. 



Special Offer. — Steel Egg Drill, Brass Blowpipe, and Egg 

 Label List, post-free is. 



NEW PRICE CATALOGUE FREE. 



THE ZOOLOGICAL SOCIETY'S GARDENS, 

 Regent's Park, are OPEN DAILY (except Sundays,) from 

 9 a.m. till Sunset. Admission is. ; on Mondays, 6d. ; Children 

 always 6d. 



ROYAL BOTANIC SOCIETY'S GARDENS, 



REGENT'S PARK. 



GARDENS OPEN DAILY from 9 a.m. to Sunset. SUNDAYS 

 from 2 p.m. to Sunset. Admission by Orders from Fellows of the 

 Society only. 



EXTRACT FROM " LE DIATOMISTE." 



A FEW SPARE COPIES OF A 



Monograph of the Genus Pleurosigma, 



and Allied Genera, by Mr. H. Peragallo. 

 40 pag-es with 10 plates, post-free, 12s. 6d. 



(With Coloured Plates, 15s.) 



Can be obtained of Mr. J. TEMPERE, Editor of "Le Diatomiste," 

 168 Rue St. Antoine, Paris. 



Microscopic Preparations Illustrating the 

 Minute Structure of Vegetable Life. 



READY for MOUNTING, with PLAIN INSTRUCTIONS. 



Being enclosed in a novel transparent envelope, these objects may 

 be examined without removal before mounting. They are pre- 

 pared with the utmost care, and are mostly stained in one or two 

 colours of the most permanent character. 



24 for 3s. 6d. ; 6 for Is. ; post-free anywhere. 

 List, One Stamp. 



walter~whi^,~Tjtc^^ 



established 1851. 



BIRKBECK BANK 



Southampton Buildings, Chancery Lane. 



THREE per CENT. INTEREST allowed on DEPOSITS 

 repayable on demand. 



TWO per CENT, on CURRENT ACCOUNTS, calculated 

 on minimum monthly balances, when not drawn below £100. 



STOCKS, SHARES, and ANNUITIES purchased and sold. 



SAVINGS DEPARTMENT. 



For the encouragement of Thrift the Bank receives small sums on 

 deposit, and allows Interest, at the rate of THREE per CENT, 

 per Annum on each completed £1. Accounts are balanced and 

 Interest added on the 31st March annually. 



FRANCIS RAVENSCROFT, Manager. 



HOW TO PURCHASE A HOUSE FOR 

 TWO GUINEAS PER MONTH, OR A PLOT OF 

 LAND FOR FIVE SHILLINGS PER MONTH, with im- 

 mediate possession. Apply at the Office of the Birkbeck 

 Freehold Land Society. 



The BIRKBECK ALMANACK, with full particulars, post 

 free, on application. 



FRANCIS RAVENSCROFT, Manager. 



Choice Specimens and Collections for Museums, 

 Students, and Prospectors. Lessons Given. Cata- 

 logues Free. 



SAMUEL HENSON, 



97, REGENT STREET, LONDON, 

 Established 1840. 



W. 



