CONTENTS. 



Page 

 I. On the Action of Sodium Malonic Ester on Trihromdinitro- 



benzol. By C. Loring Jackson and W. S. Robinson 1 



II. On Sodic Zincates. By Arthur M. Comey and C. 



Loring Jackson 14 



III. A Preliminary Account of the Development and Histology of 



the Eyes in the Lobster. By G. H. Parker .... 24 



IV. Atmospheric Economy of Solar Radiation. By Arthur 



Searle 26 



V. The Crystalline Structure of the Coahuila Irons. By 



Oliver W. Huntington 30 



VI. Contributions to American Botany. By Sereno Watson 36 



VII. The Determination of Chromium in Chrome Iron Ore. By 



Leonard P. Kinnicutt and George W. Patterson 88 



VIII. The Strength of the Microphone Current as influenced by 

 Variations in Normal Pressure and Mass of the Electrodes. 

 By Annie W. Sabine 90 



IX. Researches on Microphone Ctirrents. By Charles R. 



Cross and Annie W. Sabine 94 



X. On Pentamidobenzol. By A. W. Palmer and C. Loring 



Jackson 105 



XI. The Strength of the Induced Current with a Magneto Tele- 

 phone Transmitter as influenced by the Strength of the 

 Magnet. By Charles R. Cross and Arthur S. 

 Williams 113 



XII. An Account of a New Thermograph, and of some Measures 

 in Lunar Radiation By C. C. Hutchins, assisted by 

 Daniel Edward Owen 125 



