414 Scientific Intelligence. 
14. Die Pseudomorphosen des Mineralreichs; vierter Nachtrag 
J 1 
von Dr. J. : ; 
(Carl Winter).—Sixteen years have passed since the preceding 
the appearance of the last appendix. The 200 pages devoted to 
them is a proof of their number and the care with which the 
author discusses them. E. 8. D, 
Ill. Botany AND ZOoOLoGY. 
1. Electrical Currents in Plants.—In a notice of the action of 
Dionea and other irritable plants, p he 
0 U ity by Pro } : 
Trowbridge, which were never published, there being an intention 
m 
curvature, are due to movements of the li 
by mere contact with the electrodes, or 
_ Movements of the organs. 
~ * Ueber er electromotorische Wirkungen an unverletzen lebenden Pflanztheilen. 
