684 THE AMERICAN NATURALIST.  [Vor. XXXIX. 
Some old British tree trunks are figured in vol. 22, part 3, of the 
Transactions and Proceedings of the Botanical Society of Edinburgh. 
The deformations of woody plants sometimes called “ witches’ 
brooms” are discussed by Solereder in the Nazurwissenschaftliche 
Zeitschrift für Land- und Forstwirtschaft for January. 
An account of graft-hybridization or symbiosis in Vitis is given by 
Voss in Zandwirtschaftliche Jahrbücher, vol. 33, part 6. 
The effect of self-pollination in Papilionacez is discussed by 
Kirchner in the January Naturwissenschaftliche Zeitschrift für Land- 
und Forstwirtschaft. 
Seaside ecology in Ceylon finds exposition by Tansley and Fritsch 
in Zhe New Phytologist of January 30. 
An account of the Mandragora of the ancients in folk-lore and 
medicine, by Randolph, forms vol. 40, no. 12, of the Proceedings of 
the American Academy of Arts and Sciences. 
The chemistry of indigo is considered by Hazenwinkel and Wil- 
brink, in no. 73 of the Mededeelingen uit’s Lands Plantentuin, from 
the Buitenzorg Garden. 
A popular account of the seedless, coreless, and blossomless apples 
is given by Thomas in 7%e American Inventor of April 1. 
An interesting series of weed studies, by Waldron, constitutes Bue- 
tin no. 62 of the North Dakota Experiment Station. 
Von Schrenk reports on experiments in the chemical treatment of 
railroad ties as a means of checking fungus growth, in Bulletin no. 
51 of the Bureau of Forestry, U. S. Department of Agriculture. 
Professor Macbride's Philadelphia address, on The Alamogordo 
Desert, is distributed in separate form. 
| That the raphides of Agave, like those of Sci//a maritima, Nar- 
cissus, etc., may cause severe irritation of the skin is noted in the 
Gardeners’ Chronicle of March 11. 
Roth’s “ Die Europäischen Laubmoose" has reached a conclusion 
in the recently issued rith Lieferung. 
: An important contribution to the bryology of the Azores is pub- 
lished by Cardot in the Buletin de l Herbier Boissier of February 28. 
The supposed influence of fungi in Causing the formation of tubers 
in Solanum has been further tested, with inconclusive results, by 
