262 
A concise account of the results of recent and early investi- 
gation of this subject. 
Trees in Winter—The identification of. Aug. F. Foerste. (Bot. 
Gaz. xvii. 180, with two plates). 
Vegetable Pathology—Report of the Chief of the Division of. B. 
T. Galloway. (Washington, 1892). 
With illustrations of Ceratocystis fimbriata, the Sweet Potato 
Black Rot. 
Vriesia regina. \.. Wittmack. (Gartenflora x1. 160-162, figs. 
46, 47). 
Waluewa pulchella. E. Regel. (Gartenflora t. 1341, f 1). 
A new genus and species of Orchid from Brazil. 
Yucca—Detail Illustrations of. Wm. Trelease. (3d Ann. Rep. 
Missouri Bot. Gard. 159-166, Plates 44-54). 
A general description of the genus with a list of the species 
as recognized by the author, most of them illustrated. 
Yukon District—An Expedition Through. Charles Willard 
Hayes. (National Geographic Magazine iv. 117-162, Plates 18- 
20). 
An appendix of two pages contains a list of Lycopodiums, 
mosses, hepaticz and lichens determined by Miss Cummings. 
Ee aS a a a eae eet ne ‘ eA 
