404 Scientific Intelligence. 
these into tissue or structure, and which of course goes on indiffer- 
ently to light, which is all-essential to the former. The scientific 
reader will notice one of the author’s strong and peculiar points, 
the conservator of its own fertility, by protecting its own et 
from waste and too rapid us 
2. en oo Brasiliensis, fase. 48: Convotoudace “expo 
. Metss Aug. 1869.—Prof, Meissner, who was obliged 
for a time re ey aside serious botanical work, here icungliaa is 
return to it by a a elaboration of the Brazilian Con- 
volvulacee. The great genus /pomeea is preserved in the extended 
sense, including Calonyction, Quamoclit, Exogonium, Pharbitis, 
&c., but with Operculina of Manso maintained as a ge gece The 
work is extensively illustrated by 53 folio plates. 
3. Development of the Flower of Ping neo ies re - by 
Prof. A. Dickson of the mergers & ig = asgow. quarto memoir, 
0 
ari. 
4, A asprupiaans Teagan re mg the known Fwns, wi with 
Tables to show their Distribution; by K. M. Lyx. London, 
Murray, 1870, pp. 225, 8vo.—Fern-amateurs are not very uncomr 
mon in this country ; ; in England they abound; and to know ferns, 
if not to collect or cultivate them, is among educated Saas genio espe 
cially ladies, rather the rule than the exception; an 
Fert-books there is no small choice. Amon ng them all we shall 
hardly meet with so sold and faithful a volume as this by Mrs. 
toe Lyell. It is not a descriptive work, but, as its title denotes, 
Il catalogue of the Ferns known in every particular Sak 
with the ranges in each ; followed by a series of compact 
ble tables, in which the genera and mes es are systematically 
arranged, and the distribution through all the onceape or regions, 
and their main divisions, ~— indicated. Of course the main 
ona of information — —_ of Sir William Hooker, 
and particularly the ‘Syncipiibe icum, brought out by Mr. Baker, 
to which may be added the shes elaborate memoir on the distri- 
bution _~ 
of Ferns, in the Transactions of the Linnzan Society. ; 
ch mae must have cost long labor, and ie opm is well 
