166 . The Botanical Gazette. [April, 
shown it is stated in this form: “magnified 30 times more than the 
scale; scale=1™.” Why not, “magnified x diameters;” or “scale 
~~ 
.o5™”, drawing the latter with the same lenses as figure? 
The book is gotten up in luxurious style, with heavy paper, wide 
margins and large type. 
Minor Notices. 
FoLLowinc his revision of our N. Am. species of Epilobium, Dr. 
William Trelease now presents, in his careful and thorough way, @ 
revision of the small genera Gayophytum and Boisduvalia, six species 
of the former and four of the latter. Each species is illustrated by 
plate showing general habit and dissections. These genera are 
peculiar to our western mountain region, and are also found in cor 
Tesponding regions of S. America, but seem to be entirely wanting be 
tween. Dr. Trelease thinks that the indications are in favor of a former 
continuous distribution along the backbone of both North and South 
America. Gayophytum closely resembles the paniculatum group of 
Epilobium, and Boisduvalia was mergéd with CEnothera by Bentham 
& Hooker. The material is much confused in our herbaria, and this 
paper will do good service in helping us to proper identifications. 
AN INTERESTING SYLLABUS of a course of lectures in biology has 
been issued by Dr. D. W. Dennis,’ Professor of biology in Earlham 
College, (Richmond, Ind.). It is said of Oliver Wendell Holmes that 
he makes even an index attractive reading. A like ability is apparent 
in the present work, for the usual dryness of an outline of scientific 
lectures is relieved by the suggestive form of the topics, the a 
illustrative quotations and the range of the implied applications. oe 
use of the word biology is also to be commended, as embracing t ' 
different fields of biologic science in a reasonably just proportion. 
Dr. J. W. Mott describes? an oven for drying herbarium specimens 
tapidly. The apparatus is a double-wa!led oven with burners He 
trolled by a thermostat. The chief novelty, however, consists 1? 
use of corrugated paper, such asis used for packing bottles, 
the sheets containing the plants. This hint may be good, eve? 2 
the ordinary mode of drying. 
A CONVENIENT host and habitat index of Australian fungl has bee# “ 
Prepared by N. A. Cobb, government botanist of New South W 
It is based upon M. C. Cooke’s “Australian Fungi,” and makes 4 pa : 
phlet of 44 pages. 
1 
wot g 8vo. 20 PP., 10 cts. 
Separate from Botanisch Jaarboek 6: 1-23, p/. 7. 1894. 
betwee 
rn = 
Dennis, Davin W.—Biology: f ten lectures : 
Ear! : . gy: syllabus of a course 0 R pmondy 
Tham College: Department of University Extension, No. 3- [ a 
