VI CONTENTS. 



ARTICLE PAGE 



XV. — Corrections of the Nomenclature of the Objects figured in a 

 Memoir " On some of the Minute Objects found in the 

 Mud of the Levant," &c. By Professor W. C. William- 

 son, F.R.S 131 



XVI. — On Changes in the Distribution of Barometric Pressure, 



Temperature, and Rainfall under different Winds during 



a Solar-spot Period. By Josefii Baxendell, F.R.A.S. 137 



XVII. — On the Distribution of Rainfall under different Winds, at 



St. Petersburg, during a Solar-spot Period. By Joseph 



Baxendell, F.R.A.S 146 



XVIII. — On a Peculiar Fog seen in Iceland, and on Vesicular Vapour. 



By R. Angus Smith, Ph.D., F.R.S., &c 150 



XIX. — On Black -bulb Solar-Radiation Thermometers exposed in 



Various. Media. By G. V. Vernon, F.R.A.S., F.M.S. ... 165 

 XX. — On the Composition of Ammonium Amalgam. By R. 



Routledge, B.Sc, F.C.S 170 



XXI.— On Arsenic from Alkali-Works. By H. A. Smith, F.C.S. 180 

 XXII. — On Animal Life in Water containing Free Acids. By H. 



A. Smith, F.C.S 185 



XXIII. — On Cometary Phenomena. By Professor Osborne Rey- 

 nolds, M.A 192 



XXIV. — On an Electrical Corona resembling the Solar Corona. By 



Professor Osborne Reynolds, M.A 202 



XXV. — On the Electro-Dynamic effect which the induction of Stati- 

 cal Electricity causes in a moving body. — This induction 

 on the part of the Sun a pi*obable cause of Terrestrial 

 Magnetism. By Professor Osborne Reynolds, M.A. ... 209 

 XXVI. — Observations on the National Characteristics of Skulls. By 

 S. Messenger Bradley, F.R.C.S., Lecturer on Compara- 

 tive Anatomy, Royal School of Medicine and Surgery, 



Manchester 213 



XXVII. — On Causes preventing Smoothness of Ground. By R. Angus 



Smith, Ph.D., F.R.S., &c -223 



XXVIII. — On Anthraflavic Acid, a yellow Colouring-matter accom- 

 panying Artificial Alizarine. By Edward Schunck. 



Ph.D., F.R.S., F.C.S 227 



XXIX. — On Methyl-Alizarine and Ethyl-Alizarine. By Edward 



Schunck, Ph.D., F.R.S., F.C.S 236 



XXX.— Mean Monthly Barometric Readings at Old Trafford, Man- 

 chester, from 1 849-1872. By G. V. Vernon, F.R.A.S., 

 F.M.S 2+I 



