Astrenomy. 397 
orders of the British Colonial department and the editorship of 
Prof. Oliver of Kew. It isto be hoped that they may be more 
fully available for ‘thie Flora than they have thus far been. 
12. Joun Torrey.—This great bereavement, which took place 
on the 10th of March, was announced in the last number of this 
ournal. For want of space the biographical notice is deferred to 
the June number 
13, Sachs’ Lehrbuch. 3d edition. Lehrbuch der Botanik nach 
dem gege nwdrtigen-stand der Wissenschaft bearbeitet von Dr. 
otanik 1 
ie of hight, and Effect of Gravitation. Sever al other presi t 
have received additions to the text, and the work has been 
brought down to the summer of 1872. It is a treatise of such 
importance that the English translation, now said to be in 
renee will be warmly welcomed. G. ; G. 
The e Bepression of the Hmotions in Man and Animals; by 
Bane Darwin, M.A., F.R.S., etc. With heaaeruitic and 
other illustrations, 374 pp. 12mo, 1872. London: John Murray ; 
New York, D. Appleton & Co.—Darwin here reviews the various 
theory of natural selecti The work shows, like his other vol- 
i the laborious, faithful and deep thinking philosopher, what- 
ver ma ay be the final decision with regard to some of his deduc- 
Give 
Ill. Asrronomy. 
l. On the variation in the diameter of the Sun; by A, Seccut. 
—Secchi has re duced a series of observations on the ripened of 
Bg 
e pro ee 
obsery ration ‘deduced from the 20 threads was 0°31, and the 
minimum error was 0”°5 of arc. He thus obtained 187 reliable 
responded to heliographic latitudes comprised between 0 
degrees. While the probable error never exceeded 0'°5 ‘of are, 
