Part 21 (2/2)

For the finer details of nuclear division or similar studies, balsaradual dehydrating, the specimens may be placed successively in 30 per cent, 50 per cent, 70 per cent, 90 per cent, and absolute alcohol

It is so very sans to e, but these processes are too difficult and co books of reference may be recommended This list is, of course, not exhaustive, but includes those works which will probably be of eneral student

1 GOEBEL Outlines of Morphology and Classification

2 SACHS Physiology of Plants

3 DE BARY Coai, Mycetozoa, and Bacteria

These four works are translations from the German, and take the place of Sachs's Text-book of Botany, a very ado, and now soether they constitute a fairly exhaustive treatise on general botany--New York, McMillan & Co

5 GRAY Structural Botany--New York, Ivison & Co

6 GOODALE Physiological Botany--New York, Ivison & Co

These two books cover soround as 1 and 2, but are much less exhaustive

5 STRASBURGER Das Botanische Practicuinal is to be preferred, as it is much more coinal work This book and the next (7 and 8) are laboratory ely devoted to methods of work

7 ARTHUR, BARNES, and COULTER Plant Dissection--Holt & Co, New York

8 WHITMAN Methods in Microscopic Anatoy--Casino & Co, Boston

For identifying plants the following books ae (exclusive of des _Cyanophyceae_ and _Volvocineae_)

WOLLE Fresh-water Algae of the United States--Bethlehem, Penn

Desmids WOLLE Desmids of the United States--Bethleheae are partially described in FARLOW'S New England Algae Report of United States Fish Coton

The _Characeae_ are being described by Dr F F ALLEN of New York The first part has appeared

The literature of the fungi is much scattered FARLOW and TRELEASE have prepared a careful index of the American literature on the subject

Mosses LESQUEREUX and JAMES Mosses of North America--Boston, Casino & Co

BARNES Key to the Genera of Mosses--Bull Purdue School of Science, 1886