PRANTL’S LEHRBUCH DER BOTANIK O11 
information. It is quite possible that Professor Haberlandt’s con- 
tention that laticiferous tubes serve primarily as food-conducting 
organs may eventually aegeck ~ os cease i the evidence in 
favour of this view, or other and equivocal that 
the question of the rary of iaticlianiap’ Eves has not emerged 
from the region of mere surmise. 
But it is more pleasant and easy to note the merits of this work 
than to find demerits, and Professor Haberlandt’s new edition of 
his work will receive a deservedly assured welcome at the hands of 
botanical students. Pikay Civow:. 
Prantl’s Lehrbuch der pcnce Edited and revised by Dr. Ferpt- 
NAND Pax, Professor of Botany and Director of the Botanic 
Garden, Brealeus Twelfth enlarged and improved edition. 
rid 8vo. Pp. viii, 478, tt. 489. Engelmann: Leipzig. 
1904. Price 6 Marks. 
Oxe of the most useful and generally used of pit a 
modern text-books was that prepared thirty years ago by Professor 
Prantl. It aimed at doing for the elementary student what Sachs’ 8 
larger inp did for the advanced, and was drawn up on the lines 
of the lar ork. It had reached the third edition in 1880, when 
it was Seanslaied into English and edited by Professor Vines. Its 
ie cess in this country is measured by the fact that in 1883 the 
hird English edition appeared. It has since developed on diverg- 
fe lines, ; and now survives in our own language in Vines’s Hlemen- 
tary Teat-book (see rename Bot., 1899, p. 41), and as the Prantl- 
Pax Lehrbuch in Germany. The volume now under review bears 
testimony to one of two things: the greater enterprise of the 
German publisher, or the wider diffusion of the tea ching of botany 
on the Continent, as compared with methods in vogue in our own 
country, where it seems impossible to produce good and well- 
illustrated text-books at the low BES at which they are published 
in Germany. Dr. Pax’s book is well sons with excellent 
sgurers large, clear, and helpful. "We hoe n them all, with on 
0 exceptions, before; many are its the original Sachs’s 
Lehrbuch : ; but the selection, which was made from very various 
sources, is goo 
arrangement follows the same lines as in the original 
volume, the subject-matter being divided into parts dealing a respec- 
tively with Morphology, Anatomy, Physiology, and Systematic 
A comparison with the original volume will give some 
The third portion comprises three-fitfhs of the git 
division of the plant-world entails twelve —— wide departure 
from the original four or five. The difference is ray partly to the 
breaking up of the Alge, which now appear as Aygophycer, 
Chlorophycee, Charales, Pheophycee, and Rhodophycee. ‘These 
are preceded by tlie Myxothallophyta, Schizophy ta, Flagellate, and 
Dinoflagellate. e Fungi appear as Phycomycetes, Ascomycetes, 
and Basidiomycetes, with an appendix—Lichenes. Bryophyta and 
