644 
NATURE 
[April 21, 1870 
OBSERVATORIES, EQUATORIAL TELESCOPES, ASTRONOMICAL GLOGKS, LEVELS, ETC. 
T. COOKE & SONS, 
Opticians to H.R. the late Prince Consort, the Royal Family, and Her Majesty's Home and Indian Governments, 
BUCKINGHAM 
W/OERDKES,, v7 OUR Ke 
4 Catalogues of Observatories, Equatorial and all other descriptions of Telescopes, Astronomical Clocks, Theodolites, Levels, 
SE see oo Band Aneroids, &c., manufactured by T. COOKE and SONS, may be had on application to the Works, * 
BOOKS: FOR COUNTRY GENTLEMEN, PLAN- 
TERS, GARDENERS, &c. 
Now ready, the following Works. 
Trees and Shrubs for English Plantations. 
A Selection and Description of the most Ornamental, Native and Foreign, 
which will flourish in the Open Air in our Climate ; with Classified Lists of 
the several Species, under the heads of Soil, Aspect, Form, Colour of Foliage, 
Season of Blooming, &c., &c., for the purposes of Practical Application. By 
AUGUSTUS MONGREDIEN. With Illustrations. 8vo. 16s. 
Il. 
Alpine Flowers for English Gardens. An 
Explanation of the Principles on which the Exquisite Flora of Alpine Coun- 
tries may be ‘grown to Perfection in all Parts of the British Islands, with 
numerous Illustrations of Rock-gardens, Natural and Artificial, and containing 
descriptions of all the finest known kinds, with full directions for their culture. 
By W. ROBINSON, F.L.S. With 70 Woodcuts. Crown 8vo. 125. 
III. 
The Parks, Promenades, and Gardens of 
Paris, described and considered in relation to thewants of our own overcrowded 
towns and cities. By W. ROBINSON, F.L.S. With 400 Illustrations, 8vo. 
18s. 
IV. 
Plain Instructions in Gardening. With 
Directions and Calendar of Operations for every Month in the year. By 
Mrs. LOUDON. Zighth Edition. Woodcuts. Fcap. 8vo. 35. 6d. 
Vv. 
A Geographical Handbook of all the known 
FERNS. With Tables to show their Distribution. By K. M. LYELL. 
Post 8vo. 7s. 6d. 
VI 
Dog-Breaking; the most Expeditious, Cer- 
tain, and Easy Method, whether great excellence or only mediocrity be re- 
quired, with ODDS and ENDS for those who love the DOGand GUN. By 
LIEUT.-GEN. HUTCHINSON. Fourth Edition. Woodcuts. Crown 
8vo. 9s. 
JOHN MURRAY, Albemarle Street. 
Just published, price rs. 
As Regards Protoplasm in Relation to 
PROFESSOR HUXLEY’S ESSAY ON THE PHYSICAL BASIS OF 
LIFE. By JAMES HUTCHISON STIRLING, F.R.C.S., LL.D. 
Edin. 
“Mr. Huxley’s essay has been submitted to avery just, but clear and 
searching, philosophical criticism by Mr. J. H. Stirling, whose excellent 
treatise I very strongly recommend my readers very carefully to study.”— 
Dr. Lionel Beale in New Edition of his “ Protoplasm,” etc. 
WILLIAM BLACKWOOD & SONS, Edinburgh and London. 
Eleventh Year of Publication. On the 15th of each month. 7s. 6d. per 
annum, post free ; single copies, rs. each, 
The Chemist and Druggist; a Journal of 
the Trade and Science of Pharmacy. Each number contains Editorial 
Notes on Topics interesting to Pharmacists, Chemists, and Medical 
men ; Original Articles by well-known Scientific Wniters ; Special Reports of 
the Proceedings of the Pharmaceutical Society of Great Britain, and of other 
Associations of Chemists and Druggists; Veterinary Notes; Records of 
Progress in Therapeutics, Dentistry, Homceopathy, and Photography ; 
Illustrated Descriptions of New Inventions and Trade Novelties ; Reviews 
of Scientific and Commercial Books: Descriptive Lists of Patents: Notes 
and Queries ; Trade Memoranda, Reports and Price Lists, and a classified 
digest of the News of the Month. For Scientific Students, a number of 
Chemical, Physical, and Arithmetical Problems are provided in a special 
department entitled the ‘Corner for Students,” and two or more valuable 
prizes in the shape of scientific books are awarded to successful eompetitors 
each month. Carefully-executed lithographic portraits of eminent pharma- 
cists are issued occasionally. 
Publishing Office, Colonial Buildings, 44a, Cannon Street, E.C. 
CHEAPER EDITION OF HERSCHEL’S METEOROLOGY. 
Just published, in feap. 8yo., cloth, price 3s. 6d. 
Meteorology. By Sir J. F. W. Herschel, 
PBart., K.H. 
Contents—Air, Altitudes, Aurora Borealis, Balloon Ascents, Barometer, 
Barometric Pressure, Climate, Clouds, Cold, Currents, Cyclones, Density of 
Air, Dew, Dryness, Dust, Earth, Electricity, Evaporation, Fogs, Frosts, 
Gulf Stream, Hail, Heat, Hoar-frost, Humidity, Hurricanes, Ice, Icebergs, 
Kite Electrical, Lightning, Meteorolites, Monsoons, Ocean, Rain, Rainbow, 
Seasons, Snow, Sun, Temperature, Thunder, Tides, Vapour, Wind, &c. 
By the Same, Third Edition, crown 8vo., cloth, price 5s., 
Physical Geography of the Globe. Con- 
tents—The Sea, the Land, Rivers, Springs, Caves, Plains, Climate, Rain, 
Thunderstorms, Hurricanes and Earthquakes, Terrestrial Magnetism, Mineral 
Products, Gems, Salt, Coal, Sulphur, Plants, Animals, Fossil Remains, Eth- 
nology, &c. 
Botany, by J. H. Balfour, M.A., M.D., 
Professor of Botany in the University of Edinburgh. 
CLASS-BOOK OF BOTANY. 8vo. PP. 1,114, with 1,800 Illustrations. 
New edition (third), price ars. [Wearly ready. 
MANUAL OF BOTANY. Crown 8yo, Pp. 700, with 820 Illustrations, 
price 12s. 6d. 
OUTLINES OF BOTANY. Nearly 600 Woodcuts, pp. 712, price 8s. 6a. 
BOTANIST’S COMPANION. Crown 8vo. 2s. 6d. 
ELEMENTS OF BOTANY. With 427 Illustrations, price 3s. 6d. 
EDINBURGH: A. & C. BLACK. LONDON: LONGMAN & CO. 
THE SUNDAY LECTURE SOCIETY. 
To provide for the delivery on Sundays in the Metropolis, and to 
encourage the delivery elsewhere, of Lectures on Science, —physical, 
intellectual, and moral,—History, Literature, and Art; especially in their 
bearing upon the improvement and social well-being of mankind. 
A SERIES OF ELEVEN LECTURES ON UNDAY EVENINGS 
AT ST. GEORGE'S HALL, LANGHAM PLACE, Commencing Sunday 
Evening, 24th April, 1870, at Eight o'clock, precisely. 
April _24.—JAMES GLAISHER, Esq., F.R.S., F.R.A.S., on ‘The 
Balloon History. of its discovery and his experience in its application to use- 
ful and scientific researches,”’ 
May 1.—JAMES GLAISHER, Esq. F.R.S. F.R.AS., on “Rain. 
How deriyed. Howmeasured. Its amount and uses considered.” 
8.—HENRY MOODY, Esgq., on “The Prevention of Infectious 
Diseases, illustrated by the Sanitary Measures enforced in the City of 
Bristol.” 
15.—Professor J. S. BLACKIE (Edinburgh University), on “Socrates: 
22.—The Rev. Professor LEWIS CAMPBELL, M.A., Oxon. (St. 
Andrew’s University), on ‘‘ The ideas of the ancient Greeks respecting death 
and immortality.” 
29.—KARL BLIND, Esq., on ‘ Ancient Teutonic Mythology.” 
June ‘5.—W. B. HODGSON, Esq., LL.D., on “ The Life and Times of 
Turgot.” 
re 12.—W. B. HODGSON, Esq., LL.D., on the “The Writings or 
urgot.”” 
J9.—DAVID FORBES, Esq., F.R.S., on “Volcanoes.” 
26.—T. SPENCER COBBOLD, Esq, M.D., F.R.S., F.L.S., on 
“Cruelty in relation to the Lower Animals.” 
July 3—Rey. ALLEN D. GRAHAM, M.A, Oxon., on ‘‘ Man’s Cruelty 
to Man.” 
Members’ Annual Tickets (reserved seats) £1. Tickets for the series of 
Eleven Lectures: to reserved seats 7s. 6d., to the Sixpenny seats 4s. 
Payment at the Door, One Shilling, —Sixpence,—and Threepence. Tickets 
to be obtained of the Hon. Treasurer, Wm. HENRY Domvitie, Esq., 15, 
Gloucester Crescent, Hyde Park, London, W.. or the Hon. Secretary, JouN 
Suorrt, Esq., 4, Garden Court, Temple, E.C., or at the Hall. 
| his Ethics and Theology.” 
PHILOSOPHICAL TRANSACTIONS. 1 
The Fellows of the Royal Society are 
hereby informed that the Second Part of the PHILOSOPHICAL. 
TRANSACTIONS, Vol. 159, for the year 1869, is now published, and 
ready for delivery on application at the Office of the Society in Burlington: 
House, daily, between the hours of ro and 4e 
WALTER WHITE, 
: Assistant Secretary R S. 
Burlington House, April 19, 1879. 
Printed by R. Ciay, Sons, & Taytor, at 7 and 8, Bread Street Hill, in 
the City of London, and published by Macmitran & Co. 
at the Office, 63, Bleecker Street, New York,—Tuurspay, April 21, 1870 
