478 BOTANY. 
THe Trnemps or Norta America. * — Our gratitude is due to 
Mr. Stainton for this kindly act of international courtesy in pre- 
serving in a permanent form the part of Dr. Clemens’ scientific 
writings (and they were all confined to the Lepidoptera) relating 
to the family of Tineida. Dr. Clemens was fortunate in the begin- 
ning of his studies, in the friendship of so able a naturalist and 
kind a helper as the editor. For our part, who owe so many favors 
to Dr. Clemens, and also have derived so much aid and stimulus 
from Mr. Stainton’s works, we appreciate fully this mark of friend- 
ship. “ae 
Little new matter, but a number of new woodcuts appear, from 
Dr. Clemens’ pencil, being mostly outlines of the venation of the 
wings-of these small moths. Nine letters to Mr. Stainton, and a 
few pages of other matter, are added to what has already been pub- 
lished in the Proceedings of the Academy of Natural Sciences, 
and the Entomological Society of Philadelphia. 
BOTANY. 
On CROSS-FERTILIZATION AS AIDED BY SENSITIVE MOTION IN 
Musk anp Acamexes.— The sensitive motion of Mimulus has 
been well known, at any rate, since the time of Sprengel, who 
curiously enough includes this proper motion among those to ac- 
count for which he says ‘we are obliged to suppose an internal 
impulse, a force independent of external influences.t In this cat- 
egory he places the stigmatic movements of Mimulus, Martynia, 
and Scevola, and the movements of the stamens in Par nassia and - 
other plants. The object of the movements of the stamens in 
Parnassia was already connected in his mind with that of insect 
agency, and this has since been conclusively established by other 
botanists. t 
I am not aware that a like connection has been noticed between 
the stigmatic movements of musk, and the necessity of insect fer- 
tilization. Vaucher remarks that during the time of fecundation 
M. luteus and M. glutinosus will, as he himself has tried, close at 
* The Tineina of North America, by the late n Brackenridge Clemen preis 
collected edition of his writings on that group of insects A Da notes or ‘the edi 
H. T. Stainton, F. R. S., London, 1872. John Van ‘ack . pp- mas vool. 
tSprengel’s “Anleitung zur Kenntniss ites Gewichse,” cotta i, p. 2 
ate A. W. Bennett’s paper in Journ. Linn. Soc., vol. xi, p. 26 
