TWENTY-SECOND YEAR O 7 PUBLICATION. 
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4 MAR 1885 
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and annals of 
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ASTRONOMY, BIOLOGY, GEOLOGY, INDUSTRIAL ARTS, 
MANUFACTURES, AND TECHNOLOGY. 
(MONTHLY, FORMERLY “THE QUARTERLY JOURNAL CF SCIENCE. 
Voi. vii. 
No. CXXXV. 
maech 
1865 . 
CONTENTS. 
PAGE I 
Articles. 
1. The Heat of the Sun. By 
Ernest H. Cook. B.Sc. 
(Lond.J, A.R.C.S., F.C.S. .. 121 
2. A New Theory of the Tides. 
By Robert Bell 139 
3. Bell Buoys, and Buoy Signal- 
ling. By Rev. Samuel 
Barber I4I 
4. Psychography. Ey R. M. N. 143 
5. The Limit's of Sanitary Re- 
form 
6. The Sugar Industry. By R. 
~ aPjwayT^LR.I.A icr 
PAGE 
Analyses cf Books. 
ITrty-five Years of Registration 
Statistics, proving Vaccination 
to be to.h Ustlets and Dan- 
gerous ' j y 
Nature’s Hygiene.. .. " '.'.160 
Magnetism and Electricity . . . . ic- 
Records of the Geological Suivey 
° f India , 163, 163 
Ret ort on the Cotton Product on 
of the Stateof Alabama, &c... 165 
Report on the Cotton Proaudt on 
of the State of Florida, &c. .. 166 
&c., &c. 
Corresfondencf. Notes. 
LONDON : 
HORSE SHOE COURT, LCD GAT E mu. 
Where Communications for the Editor and Books for Review may be addressed ' 
Lf 
PRICE ONE SHILLING AND SIXPENCE 
[ The A, tides and Re forts in this Journal arc Copyright. ] 
— ' 
