EIGHTEENTH YEAR OF PUBLICATION 
ASTRONOMY, BIOLOGY, GEOLOGY, INDUSTRIAL ARTS, 
MANUFACTURES, AND TECHNOLOGY. 
(MONTHLY, FORMERLY “THE QUARTERLY JOURNAL OF SCIENCE.’) 
Articles. page 
1. Hylozoic Materialism. Com- 
municated by Robt.Lewins, 
M.D 
2. The Border-Land of Chemistry 
and Biology 318 
3. Scepticism in Geology. By 
Robert Ward 322 
4. The Philosophy of Pain. By 
Frank Fernseed 335 
5. The Weights and Measures 
Question Reconsidered. By 
An Old Technologist . . 342 
Analyses of Books. 
The New Truth and the Old Faith 349 
The Causes which produce the I 
Great Prevailing Winds, &c. . . 352 j 
; Analyses of Books —continued, page 
■ Sight : an Exposition of the Prin- 
ciples of Monocular and Bino- 
cular Vision 333 
Note-Book of an Amateur Geo- 
lo gist 
On the Geology of Florida.. .. 356 
Proceedings of the Bristol Natu- 
ralists’ Society 335 
A Monograph of the Silurian 
Fossils of the Girvan Distrift 357 
Records of the Geological Survey 
of India 33- 
On the Structure and Affinities of 
the Genus Monticulipora, &c. 3^8 
&c., &c. 
Correspondence. Notes. 
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3f HORSE-SHOE COURT, LUDGATE HILL. 
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