162 Scientific Intelligence. 
whole vegetable kingdom. They are found in the most widel 
different parts of plants, and are present both in plants whic 
contain chlorophyll and in those which are devoid of it. 
(2. i They are constant products of metastasis in vegetable pro- 
toplas 
13. 3.) Tei is probable that other actin of the series of volatile 
fatty acids (propionic, butyric roic and perhaps the whole 
series) have a very wide diffusion eirongbot the vegetable world. 
( ere is an increase in the amount of volatile acids in a 
plant in which assimilation has been arrested wi withdrawal of 
. light, and in which the state of inanition has su 
“(5 ) Formic and hotetas acids are probably pecduisel by retro- 
one metamorpho 
In a plant ahduated to a en below that of the 
Sse Capa of growth, and at the same time deprived of light, 
there is no increase in the amount of volatile acids. 
e formation of these acids tse ther efore to be some- 
how ‘independent of the respiratory 
(8.) In all probability they result cs “the splitting - rs con- 
stituents of vegetable protoplasm 
2. Conspectus Flore uropeene seu Enumeratio Methodica 
announce its completion. the best substitute for that de 
sideratum, a Flora of Europe, and from its compactness, extremely 
useful even if we had such a Flora. Dr. Nyman hopes to bring 
out a ag lene: to contain pp discoveries, in which he will 
erns and their allies, perhaps the Characee — He 
will add, likewise, a full index of species and synonym which 
has been Hops ared for the present volume, but was ome. for 
want a 
3. a Bvicetie —Dr. Eicuier has made rogre with 
this great work since our last announceme w ha 
fasc. 86, in which Dr. Drude completes the Paulas; ; + fates 87, 
containing the Asteroid and Inuloid Composite, by Mr. Baker of 
ew; and the thin fase. 88, containin g the Haloragee by Dr. 
Kanitz, of Klausenburg. The first and the last of these rae 
vo See S. 
a of British India, part 1X.—This part coarpleten “the 
third ‘owe ( Caprifoliac ew Apocynacec), of 708 pages, 1880- 
1882, and being issued at the close of the latter year, shows good 
pr ogr ess. The greater — of this part ( Vacciniacew to Salva- 
doracee) is the work of the indefatigable and acute ©. ». 
es ; the large and difficult order Apocynacew by the editor, 
Pee : 
Diplycosia: ? semi-infera The American Chiogenes, put in n Vae- 
on account of its technical character, ‘though otherwise 
Gaultherialike, ices its ovary half or two-thirds inferior ; all going 
