CURRENT. LITERATURE 
BOOK REVIEWS 
Physiological plant anatomy 
The appearance of a fourth edition of HABERLAND?’s well known work,* 
almost exactly 25 years after the first edition was published, is an indication 
of the importance of the book and the service it has rendered to the physiological 
aspect of plant anatomy. The previous edition, reviewed in this journal,’ 
has been completely revised, and the changes, although limited in extent, 
serve to incorporate the results of more recent investigation. The number 
of pages has been increased from 616 to 650, and the illustrations from 264 
to 201. 
Among the additions are sections entitled “Einrichtungen fiir besondere 
mechanische Leistungen,” which include the discussion of various hairs 
and hooks functioning as supports of climbing plants; and “Speichergewebe 
fiir Atmungsstoffe” and ‘“‘Speichergewebe fiir dkologische Zwecke,” dealing 
with certain aspects of the storage tissues of plants, but presenting little new 
data. 
The most important changes appear in the twelfth chapter, entitled 
“Die Sinnesorgane,”’ which has been entirely rewritten, with the inclusion of 
much new material. Foremost among the new data are the results of the 
author’s studies on the structure for light perception in leaves. They include 
the various lens cells or ocelli, as well as various cells below smooth outer sur- 
faces. Several papers presenting these data have already been noted in these 
pages. Both in this chapter and elsewhere in the volume the author maintains 
his well known teleological interpretation of the date in spite of the opposite 
trend of modern investigation. Fortunately this does not detract from the 
importance of his experiments or the accuracy of his data.—Gro. D. FULLER. 
MINOR NOTICES 
3 : 
Key to trees.—The authors‘ of a Key to New England trees have again 
given us a convenient and reliable pocket manual pertaining to our native 
*HABERLANDT, G., Physiologische Pflanzenanatomie. Vierte, Neubearbeitete, 
und vermehrte ad Imp. 8vo. xviii+650. figs. 29r. Leipzig: Wilhelm Engel- 
mann, 1909. M1 
2 Bor. Gaz. aiik 1904. 
3 Cotiins, J. FRANKLIN, and Preston, Howarp W., Illustrated key to the wild 
and sania cultivated trees of the northeastern United States and adjacent Canada. 
Small 8vo. pp. ation bes 279. New York: Henry Holt & Co. 1912. $1.35 
in cloth, $2.50 in leath 
4 Bot. GAz. 423399. a and Bor. Gaz. 48:472-474. 1909. 
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