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HARDWICKE's scienCE-GOSSIP.

ROYAL HORTICULTURAL SOCIETY'S

ARRANGEMENTS FOR 1872.

MEETINGS and EXHIBITIONS on the following dates, viz. :— Sept. 4th and 18th, Oct. 2nd, Nov. 6th, and Dec. 4th.

Permanent Exhibitions of Flowers, Plants, and Shrubs will also be made during the year by some of the leading nurserymen.

Band of the Royal Horse Guards, or other bands, on all the above dates, also Promenade and Band every Saturday throughout the Year.

Schedules of Prizes for the various Exhibitions at South Kensington, as well as for the Society's great Provincial Showat Birmingham, are now ready, and can be had on application to J. RICHARDS, Assistant Sec., Royal Horticultural Society, South Kensington, W.

ZOOLOGICAL GARDENS, REGENT'S PARK, OPEN DAILY (EXCEPT SUNDAYS). Admission, 1s. On Mondays, 6d.

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PRACTICAL PHYSIOLOGY; A SCHOOL

HEALTH: Being an Introduction to the Elementary Principles of Physiology, and a Practical Guide to the means of securing Health and Life. Intended for the use of classes and for general reading. By EDWIN LANKESTER, M.D., LL.D., F.R.S., late Lecturer on Physiology, St. George's School of Medicine, London; late Superintendent of the Government Food Museum, South Kensington; and Medical Officer of Health, St. James's, Westminster. Fifth edition, with numerous Illustrations and Questions for Examination, Tables, and Glossary.

"I have no hesitation in saying it is just what we require. I know of nothing which contains anything like the same amount of practical (elementary) information in the same compass; and it is written in so simple and easy a style that the knowledge it conveys will be more readily assimilated and utilised.”—Dr. Rumsey.

London: ROBERT HARDWICKE, 192, Piccadilly.

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MICROSCOPIC

CV

OBJECTS (Unmounted).—

24 First-class Specimens, carefully prepared, with Instructions for Mounting, sent for 3s. by WALTER WHITE, Litcham, Norfolk.

THE IMPROVED "DAMAR,"
Prepared by W. WHITE,

Is the Best substitute for Canada Balsam.
AGENTS:

London: Mr. Baker, 244, High Holborn, W.C. Manchester Mr. Dancer, Optician. Bristol: Messrs. Hatch & Co., Opticians. Hull: Mr. Gibson, Chemist. Ipswich. Mr. Wiggin, Chemist. Price 1s., postage lid.

TO GEOLOGISTS AND COLLECTORS OF FOSSILS. OR SALE, Cheap, at J. CHEETHAM'S Great London, a Choice lot of Saurians, Fish, Lobsters, Pentacrinites, Shells, &c.. from Blue Lias, and Trilobites, Encrinites, Madrepores, Shells, &c., from Silurian Lime.

GEOLOGY. ELEMENTARY COLLECTIONS

to illustrate the modern works on Geology, and facilitate the interesting study of Mineralogy and Geology, can be had at 2, 5, 10, 20, 50, to 1,000 guineas; also single specimens of Minerals, Rocks, Fossils, and Recent Shells, Geological Maps, Hammers, Models of Gold Nuggets, all the recent publications, &c., of J. TENNANT, Mineralogist to Her Majesty, 149. Strand, London, W.C.

PRACTICAL INSTRUCTION is given in MINERALOGY and GEOLOGY, by Mr. TENNANT, F.R.G.S., at 149, Strand, Illustrated by numerous Specimens, Models, Diagrams, &c.

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THOMAS D. RUSSELL,

37, Arundel Street, Strand, London, W.C.

THE BIRKBECK

Is the only BUILDING SOCIETY whose Annual Receipta exceeds ONE MILLION !

HOW TO PURCHASE A HOUSE for Two GUINEAS PER MONTH, with Immediate Possession, and NO RENT TO PAY. Apply at the Office of the BIRKBECK BUILDING SOCIETY, London Mechanics' Institution, 29, Southampton-buildings, Chancery-lane.

HOW TO PURCHASE A PLOT OF LAND for FIVE SHILLINGS PER MONTH, with Immediate Possession, either for BUILDING or GARDENING PURPOSES, Apply at the Office of the

BIRKBECK FREEHOLD LAND SOCIETY, London Mechanics' Institution, 29, Southampton-buildings, Chancery-lane.

HOW TO INVEST YOUR MONEY

with safety at 4 PER CENT. INTEREST. Apply at the Office of the BIRKBECK DEPOSIT BANK.

All sums under £50 repayable upon demand. Current Accounts opened similar to ordinary Bankers. Cheque Books supplied. Office hours from 11 to 5 daily, on Saturdays from 11 till 2, and on Monday evenings from 7 till 9. A small Pamphlet, containing full particulars, may be obtained, Gratis, or sent post-free or application FRANCIS RAVENSCROFT, Manager.

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NEW WORKS

PUBLISHED BY

ROBERT HARDWICKE, 192, PICCADILLY.

Half-Hours at the Seaside. By J. E. Taylor, F.G.S.

Small 8vo. With about 150 Illustrations. Price, 4s. Plain; 6s. coloured.

CONTENTS:-Half-an-hour with the Waves-Preparations-Sea-weeds-Sponges-Sea Worms-Corallines— Jelly Fish-Sea Anemones-Sea Mats and Squirts-Sea Urchins and Starfish-Shell Fish-Crustacea.

Hardwicke's Handy-book of London: a Plain and Compre

hensive Guide to Everything worth Seeing and Hearing in and around the Metropolis. Price 18. CONTENTS:-Amusements-Bazaars-Bridges-Cemeteries-Churches and Chapels-City Halls and Companies-Colleges-Commercial Edifices-Criminal Courts-Docks-Free Exhibitions-Government EdificesHigh Churches-Hospitals-Law Courts-Learned Societies and Institutions-Libraries-Markets-Monuments and Statues Museums and Antiquities-Music Halls—Omnibuses—Outdoor Amusements-Palaces-Parks and Gardens-Picture Galleries-Popular Entertainments-Popular Preachers-Principal Thoroughfares-Railways— Steamboats Theatres.

Science and Commerce; Their Influence on our Manufactures.

A Series of Lectures and Statistical Essays descriptive of the chief Articles of Commerce, and the Progress of our great Manufacturing Industries. By P. L. SIMMONDS, Editor of the "Journal of Applied Science." 650 pp., fcap. 8vo., price 6s., &c.

CONTENTS: The Obligations of Commerce to Science, and the Vegetable Products we Import-The Mineral and Animal Substances entering into Commerce-The Industrial and Manufacturing Uses of Shells-Progress of Scientific Discoveries in the Nineteenth Century-The Cotton Manufacture: Production and Consumption of Cotton Our Cotton Supplies: The Cotton Trade-The Woollen Manufacture: The Wools of Commerce and the Information to be obtained therefrom: Statistics of Sheep in various Countries: Wool and the Woollen Trade: Our Wool Supplies: Colonial Wools: Our Woollen Manufactures-The Silk Trade and Manufacture-Silk Cultivation and Supply in India-The Iron Manufacture: Progress of our Metallic Industries-The Glass Manufacture -Earthenware and Porcelain-Dyes and Colouring Stuffs: Animal Dyes: Vegetable Dyes: Mineral Dyes-The Leather Trade and Tanning Substances --The Leather Manufacture-Statistics of the Imports of Dye-stuffs and Tanning Substances-The Manufacture of, and Trade in, Precious Metals and Fancy Articles-The Trade in Groceries-The Oil and Colour, Confectionery, Tobacco, and Provision Trades-Nuts, their Products and UsesNew Paper-making Materials and the Paper Trade.

Practical Physiology: a School Manual of Health. Being

A Practical Guide to the means of Securing Health and Life. Intended for the use of classes and general reading. By Dr. LANKESTER, F.R.S. Fifth Edition. Fcap. 8vo., price 2s. 6d. Illustrated.

"It is copiously illustrated. There is not a school of any kind for males or females, rich or poor, in which the book might not be used as a text-book; indeed, it ought to be as common as an English Grammar. Few persons are capable of forming an idea of the increase of human happiness and material prosperity which would follow a more general appreciation of the laws of health."-Lancet.

Degrees and "Degrees;

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or, the Traffic in Theological,

Medical, and other "Diplomas" Exposed. By the Rev. HENRY BELCHER, M.A., Assistant Master in King's College School. Dedicated, by permission, to the Rev. Alfred Barry, D.D., D.C.L., Canon of Worcester, Principal of King's College, London. Demy 8vo., price 1s. 6d.

The Shilling Peerage, Shilling Baronetage, Shilling Knightage,

and SHILLING HOUSE OF COMMONS for 1872.

The Complete Peerage, Baronetage, Knightage, and House of

COMMONS. In One Volume. Half-bound, with coloured edges, for marking the different divisions. Price 58.

The Foot and its Covering, with Camper's Essay on the Foot.

By JAMES DOWIE. New Edition, dedicated to Sir W. Fergusson, Bart., F.R.S. Price 2s. 6d.

Sowerby's English Botany

Is now complete in 83 parts at 58. each. Eleven Vols. cloth, price £22. 8s.; in half morocco, £24. 12s.; whole morocco, £28. 3s. 6d.

The Royal Guide to the London Charities, 1872-3: show

ing in alphabetical order their Name, Date of Foundation, Address, Objects, Annual Income, Chief Officials, &c. By HERBERT FRY. Crown 8vo., price 1s. 6d. [Shortly.

LONDON: ROBERT HARDWICKE, 192, PICCADILLY.

FUNGI: EDIBLE, POISONOUS, AND MICROSCOPIC.

The following Books and Charts will be useful :

MUSHROOMS AND TOADSTOOLS:

How to Distinguish easily the Difference between Edible and Poisonous Fungi; with two large Sheets, containing Figures of 22 Edible and 31 Poisonous Species, drawn the natural size, and coloured from living specimens.

By WORTHINGTON G. SMITH, F.L.S., &c.

In sheets, with book, price 6s.; on canvas in cloth case, for pocket, 10s. 6d. ; on canvas, with rollers and varnished, for hanging up, 10s. 6d.

THE BRITISH FUNGI

(A Plain and easy Account of). With especial reference to the Esculent and other Economic Species.

By M. C. COOKE.

New and revised Edition, with Coloured Plates of 40 Species. Fcp. price 6s.

"A very readable volume upon the lowest and least generally understood race of plants. For popular purposes the book could not have been better done."-Athenæum,

Second edition, price 6s., now ready.

MICROSCOPIC FUNGI:

A Plain and Easy Guide to the Study of Rust, Smut, Mildew, and Mould. By M. C. COOKE.

Over 300 Coloured Figures.

"To all possessors of a microscope this prettily illustrated book is specially to be commended."-Field.

LONDON: ROBERT HARDWICKE, 192, PICCADILLY, W.

NOW COMPLETE.

"Exhaustive of the subject, and worthy of the branch of science it illustrates."—The Times.

"Will be the most complete Flora of Great Britain ever brought out. This great work will find a place wherever botanical science cultivated, and the study of our native plants, with all their fascinating associations, held dear."-Athenæum.

SOWERBY'S ENGLISH BOTANY;

CONTAINING

A DESCRIPTION AND LIFE-SIZE DRAWING OF EVERY BRITISH PLANT.
Edited and brought up to the present standard of scientific knowledge by T. BOSWELL SYME, F.L.S., &c.
With Popular Descriptions of the Uses, History, and Traditions of each Plant by Mrs. LANKESTER, Author of “ Wild
Flowers worth Notice," "The British Ferns," &c.
The Figures by J. E. SOWERBY, JAMES SOWERBY, F.L.S., J. DE C. SOWERBY, F.L.S., and J. W. SALTER, A.L.S.

The Distinctive Characteristics of this Edition are :—

1. A Life-size Drawing of every British Plant, arranged according to the Natural System of De Candolle.

2. Where necessary, the Plates are accompanied by Illustrations of the structure of the various organs of the Plant, especially of those structures discovered within the last few years by the use of the Microscope.

3. All the Illustrations are full-coloured instead of half-coloured, and the utmost care is taken to adhere as closely as possible to Nature.

**The monthly issue of 5s. numbers commenced in January, 1863. Subscribers may commence at any time without buying all the back numbers at once. PROSPECTUSES AND SPECIMENS GRATIS.

This great National Work ought to be in the Library of every Country House, and in all the Public Institutions throughout the kingdom.

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Or, the Eleven Volumes complete, £22. 8s. in cloth; £24. 12s. in half morocco; and £28. 3s. 6d. whole morocco.

LONDON: ROBERT HARDWICKE, 192, PICCADILLY, W.

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CHLORALUM,

THE

HOUSEHOLD DISINFECTANT.

SAFE, ODOURLESS, AND NON-POISONOUS.

CHLORALUM, CHLORALUM POWDER, and CHLORALUM
WOOL are active Deodorisers, and invaluable in
"stamping out" Fevers.

Dr. EDWIN LANKESTER held an inquest on the 1st of May, 1871, on the body of John Edwards, a cab-driver, who had been depressed in spirits for some days, and swallowed intentionally some carbolic acid which had been obtained to disinfect the house. The coroner said, "There had been a number of lives lost lately through poisonous disinfectants. All poisonous disinfectants should be excluded from the household, and such an agent as Chloralum used, which might be left about without danger."

CHLORALUM IN SMALL-Pox.-The Chloralum Company have received the subjoined communication:

"Small-pox Hospital, New St., E.C., Feb. 20, 1871.

"The Chloralum Company.—Gentlemen,―The patients in my hospital feel much comfort from the use of Chloralum as a wash. It seems to lessen the itching, and cools them nicely. We employ it in scouring the wards, and find it, from its freedom from odour, preferable to carbolic acid, and quite as efficacious.

"Yours obediently,

(Signed) "F. GORDON BROWN, Medical Officer."

Chloralum is largely used by Health Boards in the state of Liquid

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"The practical point it is my wish to enforce is that with such an agent as Chloralum, possessing the active properties of hydrochloric acid, it is possible effectually to disinfect; and wherever offensive matter exists, especially in the sick room, this agent should be used. I especially advocate Chloralum because not only is its power known to me, but, in my opinion, it has no substitute."

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THE CHLORALUM COMPANY,

Nos. 1 & 2, GREAT WINCHESTER STREET BUILDINGS, LONDON, E.C.

Wyman & Sons, Lincoln's-Inn Steam Printing Works, 74-5, Great Queen Street, London, W.C.

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