508 Serentifie Intelligence. 
cuts illustrating the genera. Under the Schizomycetes the cuts 
5 
are taken principally from Cohn, Koch and Warming, and the 
e ver executed. i i inte 
are ell lescriptions given r are 
also excellent, eee uncomfortably condensed nor too diffuse 
From the nature of the subject the descriptions of the species 
0 
should sieceuaneity be followed by notes on the development and 
variations, and the editor has given much desirable information 
on the asta principally from the works of Cohn and 
Warming, and in the Ustilaginew the notes are ce 7 nu- 
merous Sagal ote "vatio 
7. Notes digedoutaiise: deucidme Sascicule; by Ep. Bor pasa : 
G. Tuuret.—The second part of the “ Notes Rigttowiencad? in- 
cluding 25 quarto lithographic plates and the index to parts one 
and two, is quite equal to the portion already issued in the clear- 
by those of the “Etudes Phycologiques” of the same authors 
The ie ahy fasciculus differs from the first in that comparatively 
e portion on None reall eae of that 
genus. Twenty-nine spline i are recognized and a very large 
number of synonyms are included under them. To illustrate, it 
commune Vaucher, as it is commonly called, is referred to 
der XV. cinoflonum Tournefort, and under that name Bornet sad 
Thuret include no less than 32 synonyms. Under Scytonema 21 
species are recognized, and 8. Ravenelié Wood has included under 
coast. Under Hormactis Balani, reference is made to the only 
species found in the United States, which was at first supposed to 
be new and was provisionally na amed Farlowii. It was after- 
wards recognized by Dr. Bornet as identical with Wostoe paid 
Ag., of the ‘Marianne Islands, which according to Bornet, is a tru 
Hormactis. H. iis known only from the locality ‘named in 
the Pacific and fora the coast of New England, an prelerne sir 
for one of the Phycochromace Be 
On “i meats: ord affinit ies of Halysites ; by A. ny Ver 
L.—Of the so-called “tabulate corals” many genera have 
id Thus, Agas- 
7, ascertained the hydroid nature of Millepora, and 
his observations have been fully confirmed by Mosely and others. 
That og sig and its allies, living and extinct, are true madre- 
nig corals was shown by me in 1867. That Favosites and 
related extinct genera are closely allied to the modern Alve- 
ae and Porites was also demonstrated by me in 1872.* 
* This Journal, iii, 187-194, 
