lxxviii 



HARDWICKE'S SCIENCE-GOSSIP. 



SPECIAL BOTANICAL SLIDES. 



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, " Passiflora cserulea " 



i/- 

 1/3 

 1/6 

 */- 

 2/- 

 2/6 

 2/6 



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



CARBONIFEROUS POLYZOA for Students. 

 18 Species on Slide, is. Zd. ; also Carboniferous Polyzoa and 

 IForaminifera, 3 to 6 Species on Slide, gd. Post Free. 



G. R. VINE, Attercliffe, Sheffield. 



New and Interesting- Species of Shells 



Fr077i Borneo, Lake Ta7tga?iyika, and the Philippi?ic Islands. 



COLLECTIONS PURCHASED. SPECIMENS EXCHANGED. 

 ^MANUFACTURER OF GLASS - TOPPED BOXES, &c. 



Foreign Correspondence Invited. 



HUGH FULTON, Dealer in Recent Shells, 



89, 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 



(Patent afflict! 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. 



Series @k Pic^o^copic^l 6bjec¥£. 



Above 70 Series of Unmounted 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 Mou?ited Slides, 

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

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

 ■ in each Series, at 4cs. each. 



12 SPREAD DIATOMS (nearly pure.) 

 Series 2.-5/-. 12 Slides. 



Pleurosignia curvulum. 

 Gomplionema subclavatum. 

 I-icmophoia tincta. 

 Cocconeis excentrica. 



,, pediculus. 

 Amphora proteus. 



Synedra crotonensis. 

 Rhizosolenia robusta. 

 Cose 1 110 disc us concinnus. 

 Asterionella formosa. 

 Synedra affinis. 

 Tabellaria flocculosa. 



12 SPREAD DIATOMS (nearly pure.) 

 Series 3.-5/-. 12 Slides. 



Cyclotella Bodanica. 



Cycli 



Rhoicosphrenia curvatum, 

 Hiinantidium pcctinalc. 

 Navicula scopulorum. 

 Leptocylindrus danicus. 

 Diatoma vulgare. 



Cocconeis placentula. 

 Navicula minima. 

 Homoeocladia Vidovichii. 

 Lie in op ho ra Ehrenberg-ii. 

 Meridon circulare. 

 Fragilaria virescens. 



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



Send Stamp for Catalogue of 40 Pages. 



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 

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WANTED.— BRITISH ASSOCIATION 

 REPORTS, 1875. State price. — PETER MOLLER, 43, 

 Snow Hill, London, E.C. 



BUY, SELL, or EXCHANGE 



HOROSCOPE S\i\oES 



Large variety of Gorgeous Polarising, Brilliant Opaque, and 

 interesting Objects. 



Price 5s. 6d. dozen. Cash returned if not approved. 



HENRY EBBAGE, FRAMLINGHAM, SUFFOLK. 



EXTRACT FROM " LE DIATOMISTE." 



A FEW SPARE COPIES OF A 



Monograph of the Genus Pleurosigma, 



and Allied Genera, by Mr. H. Peragali.o. 

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



(With Coloured Plates, 15s.) 



Can be obtained of Mr. J. TEMPERE, Editorof "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 WHITE, LITCHAM, SWAFFHAM. 



ESTABLISHED 1851. 



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FRANCIS RAVENSCROFT, Manager. 



UOW TO PURCHASE A HOUSE FOR 



n. TWO GUINEAS PER MONTH, OR A PLOT OF 

 LAND FOR FIVE SHILLINGS PER MONTH, with im- 

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The BIRKBECK ALMANACK, with full particulars, post 

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FRANCIS RAVENSCROFT, Manager. 



WHN^ERALOGY. 



Choice Specimens and Collections for Museums. 

 Students, and Prospectors. Lessons Given. Cata- 

 logues Free. 



SAMUEL 



HENSON, 



97, REGENT STREET, LONDON, W. 

 Established 1840. 



mmm 



"1 



:Nuinbersfor use by Bankers:— Barrel Pens,) ll 

 5225,226,262. Slip Pens, 332, 909, 287, 166 ,j t\, 

 |404. In fine, medium, and broad Points. 



