1904 | CURRENT LITERATURE 225 
tion (two lectures), and its applications (three lectures); and Electromotive 
force (two lectures). References to important papers are given by footnotes. 
At the end of the volume is an index both of subjects and of authors’ names, 
but we look in vain for a table of contents to aid the reader in following the 
scheme of presentation. The translation is excellent throughout, and well 
worthy of the accuracy of the original B. E. LivinGsTon. 
A premedical text-book. 
THIS GENERAL TEXT-BOOK of botany? is written for premedical and 
pharmaceutical students in particular and the nonprofessional undergraduate 
incidentally. Like most German works of its sort, it is divided into three 
arts : first, a general treatment of the organogeny and cell structure of plants; 
second, their physiology; third, the general morphology of representatives of 
the great plant groups. Of these three, the greatest stress is laid upon the 
first part, which reflects in great measure the views of Goebel as found in his 
synthesis, and other plant functions are much more elementary, as is the gen- 
eral morphology. There is a wholesome admixture of new illustrations with 
courage to drop by the wayside. Inthe treatment of what the author calls 
the “Spezielle Botanik” there is no description nor figure of the sex organs of 
the liverworts or mosses, and none of the sexual Semiecah of the water ferns, 
€quisetum, selaginella, isoetes, gymnosperms, and angiosperms. The groups 
of flowering plants described seem to have been cca iavely because 
members of the order afford commercial products. e stamens and pistils 
are referred to as “geschlechtsorgane. is is an anachronism that does 
not accord with the views expressed on the alternation of generations, which 
are quite up to date.—FLORENCE M. Lyon 
MINOR NOTICES. 
E FLORA OF PENNSYLVANIA, in preparation many years by the late 
Professor Thomas C. Porter, has appeared under the editorship of Dr. John 
-Small.4 It consists of a list of gymnosperms and angiosperms with sta- 
tions, and is the result of personal exploration and extensive cooperation of 
others for a period of over sixty years. Professor Porter's ambition was to 
make his list of hae ate plants complete, and this led him to defer 
printing it from time to tim When death overtook him in his eightieth 
year, the work seemed to He not yet perfect enough for publication, but a 
Provision in his will for its publication has enabled Dr. Small to present it to 
the public. The summary shows that it records 2201 species, which have 
3 GIESENHAGEN , K., Lehrbuch der Botanik. Imp.8 vo. pp. xii+475. figs. 
557- Stuttgart: Fr. Grub. 
ORTER, THOMAS Sasct Flora of Pennsylvania. Edited with the addition 
‘ 4p 
of analytical keys by John K. Small. 8vo. xv-+362. Boston: Ginn & Co. 1903. $2.15. 
