CONTENTS. OF No. XLI. 
I. The Saturnian Syitcin : 
II. On the Relation between Refracted and Diffracted Spectra. 
III. Observations on the Optical Phenomena of the Atmo- 
sphere. ¥ 
IV. Recent Changes in British Artillery Matériel. 
V. The Geological Survey of the United Kingdom. = 
VI. Gall’s Discovery of the Physiology of ge Brain, and its 
Reception. 
VII. Economy of F uel. 
VIII. Notes of an Enquiry into the Phéwoneea be Spiritual, Ss 
during the years 1870-73. 
2 
NOTICES OF SCIENTIFIC WORKS- 
tyndall’s “* LeGtures on Light.” 
Lockyer’s ‘‘ The Spectroscope and its Applications.” ce 
Proétor’s ** Light Science for Leisure Hours.” i ee 
Thorpe’s “ Quantitative Chemical Analysis.” see 
Shelley's ‘‘ Workshop Appliances.” 
Latham’s “ Sanitary Engineering.” ae. 
Baird’s “‘ Annual Record of Science and Industry 1 for 1872.” ; 
Gillmore’s ‘‘ Report on Béton Aggloméré.” 
Gillmore’s ‘‘ Practical “reatise on Limes, Hydraulic Cements, and — 
Mortars.” “ ; = 
Bain’s ‘* Mind and Body. : ra 
Sir John Lubbock’s ‘ Cetie and Metamorphoses of Insects.” | {fer 
Fox's “ Ozone and Antozone.” be ; oe 
” f 
Atkinson’s “ Ganot’s Elementary Treatise on ite 
Jenkin’s ‘* Eleétricity and Magnetism.” s 
Althaus’s “ Treatise of Medical Electricity.” a YoY 
Saltzer’s ‘* Treatise on Acoustics.” mba a 
Blackley’s ‘‘ Experimental Researches on the Causes and Nature of 
Catarrhus Estivus.” . 
Baker's ‘‘ Long Span Bridges.” 
. 
“a . * Neer Ae 
ley === = ¥ 
PROGRESS IN WCIENCE, 
(Including the Proceedings of Learned Societies at Home aie Abroad, and : 
Notices of Recent Scientific Literature ). igs 
MINING. MINERALOGY. Puysics. 
METALLURGY. ENGINEERING. TECHNOLOGY, 
GEOLOGY. 
