V J CONTENTS. 



Page 



XIII. On the Charging of Condensers by Galvanic Batteries. By 



15. 0. Peikce and It. \Y. Willson 146 



XIV. Classification of the Atomic Weights in Two Ascending 



Series, corresponding to the Groups of Aiiiads and 

 Perissads. By W. R. Livermoke 164 



XV. Neutralization of Induction. By John Trowbridge and 



Samuel Sheldon . 176 



XVI. The Magnetism of Nickel and Tungsten Alloys. By John 



Trowbridge and Samuel Sheldon 181 



XV 1 1. The Micanique G'leste of Laplace, and its Translation with 



a Commentary by JJowditch. By JOSEPH Lovering . 185 



XVIII. On a New Method of determining Gas Densities. By 



Josiah Paksons Cooke 202 



XIX. On the Action of Sodium Malonic Ester on Tribromdinitro- 



benzol. By C. Loring Jackson and W. S. Robinson 234 



XX. On some Nitro Derivatives of Metabromtoluol. By W. B. 



Bentley and W. II. Warren 250 



XXI. On the A el ion of Sodium Malonic Ester upon Tribromtrini- 

 trobenzol. By C. Loring Jackson and George Dun- 

 ning Moore 256 



XXII. On the Action of Sodium Acetacetic Ester upon Tribromdi- 

 nitrobenzol. By C. Loring Jackson and George 

 Dunning Moore 271 



XXIII. On Tetrabromdinitrobenzol By C. Loiung Jackson and 



W. I). Bancroft 288 



XXIV. General Considerations in regard to Certain Compounds 



■prepared from Bromnitrobenzols. By C. Loring Jackson 306 



XXV. Features of Crystalline Growth. By Oliver "Whipple 



IIlNTINGTON 313 



XXYI. I. On Chlorpyromucic Acids. By Henry B. Hill and 



Louis !-■ Jackson 320 



II. <>n Certain Derivatives of Furfuracrylic Arid. By 



II. B. Gibson and C. F. Kahnweiler . . . 364 



III. On the so called Dioxymaleic Acid. By W. S. 



Hi n drixson ; . 376 



