310 BOTANICAL GAZETTE [ APRIL 
Practical botany. 
A FOURTH EDITION of Professor Strasburger’s? well-known Das Alene 
botanische Practicum has just appeared and, like the previous editions, it is 
remarkable for the judicious manner in which the presentation of fundamental 
subject-matter is flavored with modern research. As before, there are thirty- 
two chapters, and the general method of presentation, which has proved 
successful, has been retained, so that a glance at the table of contents might 
lead one to imagine that little change has been made, An examination of 
the exercises, however, shows that the entire work has been carefully revised, 
that examples have been changed, and that every effort has been made to 
bring the book up to the present standpoint of botanical science. The num- 
rof forms studied has been somewhat reduced, on the ground that it is 
better to study a smaller number of forms thoroughly than a larger number 
superficially. A few of the improvements to which special attention might 
be called are as follows: a study of sensitive hairs and papillae, a study 
double fertilization, a more extended study of protoplasmic connections with 
the latest methods of demonstrating them, and a particularly thorough revision 
of the chapters on bacteria and on cell and nuclear division. A large or 
ber of new figures has been added. aie 
It may not be out of place in this connection to call attention to 4 
which might be mistaken by the general student for an English translation 
_ Professor Strasburger’s work. In the first edition of the translation ays 
lator added some notes of his own and also some additional eg 
all such matter was clearly indicated by brackets. In the . 
a — of the brackets were eliminated, and in the last pag all ene 
inserted by the translator. Several figures have also been su 
is, to say the least, unfortunate, since in all of the peace ens ll the. : 
has been laid upon the fact that Professor Strasburger | aber’ 
figures, and that all statements, even when they concern matters 
knowledge, rest upon his own investigations. Some of the to F 
referring to Cladophora as non-cellular, are directly contrary 
oe *STRASBURGER, E., Das kleine botanische Practicum fiir Anfinger- 
_ tum Selbststudium der mikroskopischen Botanik und Binfithrung 9 
pischen Technik. Vierte umgearbeitete Auflage. 8v0, vast 
Jena: Gustav Fischer. 1902. M6 
os 3 Handbook of Practical Botany for the laboratory and the rt dd 
_ ‘Dr. E. Strasburger. Translated and edited from the German a wie © at 
_ Rotes by W. Hillhouse. | > fate rewritten and enlarged. 8y0- eae 2 
Swan ee & Soe 
3 pstituted- _‘This 
itions stress 
