239 
hours, then back again in twelve hours to its original position, then 
in the opposite direction four hours, and then back to its first posi- 
tion in four hours more, making its swing in about twenty-six hours. 
The oscillations continue several days, and appear to be independ- 
ent of light. The April No. continues Mr. Greene’s Rambles, and 
has also a plate showing Welwitschias growing in a plain on the 
coast of Angola. Mr. Bennett gives some account of the fossil fun- 
gus found in a Lepidodendron. In the May No. Prof W. J. Beal 
treats of hairs and glandular hairs of plants, their forms and uses. 
In the June No. the same writer notes his experiments in cultivating 
Hepaticas. One stem bore two flowers near the top, and another 
three. From Trimen’s Journal is drawn a summary of Otto 
Kuntze’s work, to which we have before referred, but which we have 
not seen. It is on the means by which plants are protected from 
animals, unfavorable weather, &c., and we judge contains highly 
interesting observations. Mr. Lester F. Ward has an elaborate 
article on the genealogy of plants, in which he criticizes the usual 
classification and offers the following: I. PHarNoGams. A. 
Angiosperms. 1. Dicotylae (exogenous). 2. Monocotylae (endo- 
genous). B. Gymmnosperms. 1. (exogenous) a. Gnetaceae, 3. 
Coniferae. 2. (endogenus) Cycadaceae. II. CryproGams. A. 
Lepidophyta. 1. Dichotomeae: a. Ligulatae, 4. Lycopodiaceae. 
2. Equisetaceae (?), B. Filicineae. 1. Rhizocarpeae. 2. Filices. 
His corresponding genealogical lines are: I. LINE oF THE LEPIDO- 
PHYTES. Primordial Cryptogams: Lepidophytae: Dichotomeae 
[Lycopodites, &c.]: Ligulatae [Isoetes, &c.]: Coniferae: Gne- 
taceae: Dicotylae. II. Line of THE Ferns. Primordial Crypto- 
gams: Filicineae: Rhizocarpeae [Marsilia, &c.]: Cycadaceae: 
Monocotylae. The typographical form of these tables, lettering, 
numbering, &c., are our own, adopted for economy of space. 
4. Ferns of Kentucky, with sixty full-page etchings, and six wood 
cuts, drawn by the author, by John Williamson, Louisville, Ky. 
John P. Morton & Co. Price $2.00. In Europe fern lovers are 
supplied with a great variety of books illustrating their favorites, but 
in this country we have had nothing except the illustrations in Gray’s 
Manual. These illustrations it is true are by Sprague and as far as 
they go are not likely soon to be surpassed, but they are only intended 
to illustrate the generic distinctions. The magnificent Ferns of 
North America, edited by Prof. Eaton, now in course of publication, 
will of course be in the hands of all true pteridophils ; but it has 
only reached the fifth of about twenty parts, and the price though very 
moderate may deter some from purchasing, who are not yet enough 
devoted to the subject to deny themselves other gratifications for 
the purpose of indulging in this. In Mr. Williamson’s work, 154 
pages, 7 X 44 inches, we have a convenient pocket manual, with 
blank pages for notes, giving illustrations and descriptions of forty 
species of ferns. Of the fifty-seven in Gray’s Manual, of course, 
the more northern ferns are not found in Kentucky, but two, 
Asplenium Bradleyi, and Trichomanes radicans, not there given, 
are found in Kentucky. ‘Two plates are given of Botrychium terna- 
tum, (lunarioides, Manual) viz., var. od/iguum, and var. dissectum. 
