CONTENTS. 



Page 

 I. Telephonic Specific Inductive Capacity. By F. H. Safford 



AND G. U. G. HOLMAX 1 



n. On some North American Species of Lahoulheniacece. By 



Roland Thaxter 5 



III. On the Carpologic Structure and Development of the Collema- 



cece and Allied Groups. By W. C. Sturgis 15 



rV. Concerning the Structure and Development of Tuovieya fluvi- 



atilis, Harv. By William Albert Sktchell .... 53 



V. On the Extent of the Excursion of the Electrodes of a Micro- 

 phone Transmitter. By Charles R. Cross 69 



VI. Notes on Zonaria variegaia, Lam'x. By Herbert M. 



Richards 83 



Vn. A Method of Obtaining and of Measuring very high Pressures. 



By Carl Barus 93 



VIII. Electrical Oscillations in Air. By Johx Trowbridge and 



W. C. Sabine 109 



IX. Contributions to American Botany. By Sereno Watson . 124 



X. The Reactions of Sodic Alcoholates with Tribromdinitrobenzol 

 and Tribromtrinitrobenzol. By C. Loring Jackson and 

 W. H. Warren 164 



XI. Motion of Atoms in Electrical Discharges. By John Trow- 

 bridge 192 



