TWENTY-FIRST YEAR OF PUBLICATION 
AND ANNALS OF 
ASTRONOMY, BIOLOGY, GEOLOGY, INDUSTRIAL ARTS, 
MANUFACTURES, AND TECHNOLOGY. 
(MONTHLY, FORMERLY "THE QUARTERLY JOURNAL OF SCIENCE.”) 
Vol. VI. (JEM 
No. CXXI. 
J - A-HSTU-A-IR/ir 
1884 . 
CONTENTS. 
PAGE 
lRTICLES. 
1. Earthquakes and Eleftricity. 
By Col. Arthur Parnell, 
late Royal Engineers . . . . x 
2. Canine intelligence By C. 
Lloyd Morgan io 
3. The Sun-Spots and the Zodi- 
acal Light. By A. H. Swin- 
ton 19 
4. Baron Nordenskjceld’s Green- 
land Expedition. By Count 
O. Richtenstein 21 
5. The Potassium Nitrite Outcry 27 
6. On the Hybridisation of Am- 
phibians and the Principles 
of Reproduction 30 
PAGE 
Articles — continued . 
7. Dr. Meldon’s Electric Motor 37 
Analyses of Books. 
Evolution and Natural Theology 40 
To all the Invisible Gods : con- 
cerning two distinct Bibles being 
composed in the one Bible .. 43 
Records of the Geological Sur- 
vey of India 44 
The English Illustrated Magazine 45 
Association for the Improvement 
of Geometrical Teaching. The 
Elements of Plane Geometry. . 46 
Correspondence 47 
Notes 51 
LONDON : 
HORSE-SHOE COURT, LUDGATE HILL. 
Vherc Communications for the Editor and Books for Review may be addressed . 
PRICE ONE SHILLING AND SIXPENCE 
[The Articles and Reports in this journal are Copyright.'] 
