A WEEKLY 
WEE USTIVA EDS OUicN AES OE 
SCIENCE 
"To the solid ground 
Of Nature trusts the mind which builds for aye.” 
—WoORDSWORTII 
THURSDAY, FEBRUARY 3, 1870 
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Fourth and very much enlarged Edition, 70 Plates, 4 Coloured, 21s. 
HOW TO WORK WITH THE MICRO- 
SCOPE. By Dr. LIONEL BEALE, F.R.S. 
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NEW WORK BY DR. BEALE, F.R.S. 
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LABORATORY OF EXPERIMENTAL SCIENCE. —A Course of 
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SHARPEY MEMORIAL. 
Subscriptlons towards the Fund for establishinga ‘‘SHARPEY PHY- 
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GANOT’S PHYSICS. By PROFESSOR ATKINSON. 
In post 8vo. pp. 900, with Plate and 698 Woodcuts, price 15s., the Fourth 
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ELEMENTARY TREATISE ON 
PHYSICS. Experimental and Applied, for the use of Colleges and Schools. 
Translated and edited from Ganot’s ‘‘Eléments de Physique” (with the 
Author's sanction) by E. AV KINSON, Ph.D., F.C.S. Professor of Experi- 
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INTELLECTUAL OBSERVER. 
A QUARTERLY JOURNAL OF SCIENCE, 
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Illustrated with Coloured Plates and Woodcuts. 
ConTENTS OF Number I. 
THE CONDITION OF JUPITER. By John Browning, F.R.A.S. 
ON POISONS. By F. 3s. Barff, M.A. Ch. Coll. Camb. 
THE DIVINING ROD. By Dr. White. 
THE STRUCTURE OF THE BLOW FLY. By H. J. Slack, R.M.S. 
REMINISCENCES OF DREDGING. By the Rey. T. Hincks. 
THE SCALES OF LEPIDOPTERA. Researches of Dr. Piggott. 
ON THE MULTIPLE TAIL OF THE GREAT COMET OF 1744. 
J. R. Hind, F.R.S. 
THE PROGRESS OF THE MONT CENIS TUNNEL. 
COAL TAR AND ITS PRODUCTS. By Dr. Mills, F.C.S. 
TELESCOPE WORK FOR MOONLIGHT EVENINGS. 
SAGO PALMS. _ By Shirley Hibberd, F.R.H.S. 
THE MIOCENE FLORA OF SPITZBERGEN. 
GEOLOGICAL COLOURS. ByG. A. Lebour, F.R.G.S. 
PROGRESS OF INVENTION. Foreign Science. 
LITERARY NOTICES, MISCELLANEOUS NOTES, etc. erc. 
GROOMBRIDGE AND SONS, 5 Paternoster Row, London, 
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