734 General Notes. { September, 
anophycee or Phycochromacee, and containing the sub-orders 
Chroococcacez and Nostochinee. Order 11. Zoosporee, with the 
sub-orders* Chlorosporee, Bryopsidex, Botrydiez, Phaeosporee. 
Order 111. Oosporee, with sub-orders Vaucheriee and Fucacee. 
Order 1v. Hloridee, including sub-orders Porphyree, Squamariee, 
_ Nemaliez, Spermothamniee, Ceramiez, Spyridiee, Crypto- 
nemiez, Dumontiez, Gigartinee, Rhodymeniez, Spongiocarpee, 
Gelidiee, Hypnez, Solierieze, Spharococcoidee, Rhodomelee, 
Corallinez. 
Tue Lirerature or Boraxy.—Mr. B. D. Jackson’s ‘“ Guide to 
the Literature of Botany” (I.ongmans, Green & Co., and Dulau 
& Co., London), will prove indispensable to the working botanist. 
It is not. simply a list of all the botanical publications, but a 
selected and classified list, so that when one consults it he is not 
obliged to hunt through a great mass of less important matter. 
The selections have been quite well made, and as the book con- 
tains 6000 titles not found in Pritzel’s “ Thesaurus” (not 
more, as we thought from the prospectus and so noted in the June 
“ Notes”) it should at once find a place upon the shelves of every 
botanist’s library. The general appearance of the book, which 
contains over six hundred small quarto pages, is good, and the 
typographical errors are, considering the nature of the work, re- 
markably rare. 
A Hinr To Microscopists.—The editor of this department, 
since the publication of his “ Botany for High Schools and Col- 
and prepare their own specimens is doing the best work. ut 
the fact remains that for a very great number it is impossible for 
them, with their thousand and one other duties, to take upo? 
themselves the additional labor required to supply, at the proper 
time, the proper illustrative specimens. To meet the wants of 
such cases, and they are numerous, why cannot some of our 
microscopists put up sets of mounted slides, designed to show 
the more important structures, in a well selected list of illus- 
trative plants. A set of twenty-four specimens, somewhat 2° — 
follows, would be useful. Protephyta—(1) Protococcus, (2) yeast 
plant; Zygosporee—(3) Hydrodictyon, (4) Diatoms, (5) Spirosyt 
(6) Mucor; Oosporee—(7) Volvox, (8) Vaucheria, (9) Peronospora, 
(10) Fucus ; Carpfosporee—(11) a fruiting Red Alga, as Nemalion, 
(12) Erysiphe, (13) a lichen, as Usnea, (14) Puccinia grams © 
all its stages, (15) sections of mushroom, (16) Chara or Nitella ; 
