1906] CURRENT LITERATURE 153 
plants growing under the immediate influence of the acid fumes and others 
growing under similar conditions but not within the smoke zone, must be made. 
—H. HaAssE.princ. 
Viticulture—Recent publications from the Royal Hungarian Central Insti- 
tute of Viticulture are as follows: Volume III, part 2, consists of chemical analyses 
of the stems and shoots of American species used for stocks in Hungary.'4 The 
points determined were the moisture content, ether extractives (oils, fats, waxes, 
ms, and organic acids not further determined), alcoholic extractives (tannin, 
pashan, vanillin, and organic acids), nitrogen, starch, cellulose, and pro- 
teids. e paper contains a large number of analyses made at different seasons, 
but no general results have yet been reached, and it is difficult to see what may 
be expected. Part 3 of this volume is a small paper by IstvANFFI'S in which he 
describes a disease of the vine caused by Phyllosticta Bizzozeriana Massal. The 
disease is not of great importance, but has been mistaken for the black rot, one 
of the most dangerous vine diseases. In the part 4 IstvANFrFI’® gives the results 
of his investigations on the gray rot, caused by Botrytis cinerea. The first part 
of this paper is taken up with the effects of various kinds of poisons and other 
treatments as cold, drying, etc., on the spores of the fungus. One of the most 
striking results is the unusually high resistance which the spores are said to have 
to copper. Spores were kept twenty-four hours in different strengths of Bordeaux 
mixture ranging from 1 to 10 per cent., to which was then added must containing 
I per cent. of tartaric acid, so that the resulting solutions contained the equivalent 
of 0.3 per cent. CuSO,. Of the spores from the lowest strength mixture 38-40 
per cent, germinated, of those in the highest 10-12 per cent. germinated. Spores 
sown on berries in 3 per cent. Bordeaux mixture germinated and penetrated the 
epidermis. Spores, kept one hour in a 2 per cent. solution of CuSO,, which 
was then diluted with ten times its volume of must, germinated. Many other 
similar experiments are given. The second part of the paper deals with the 
development and life history of Botrytis cinerea and methods of control. Ve 
little new is added to the life history of the fungus. For treatment, spraying 
with a 5 per cent. solution of calcium bisulfid is recommended.—H. HasseLBRING. 
Endotrophic mycorhiza.— The long and important paper of GALLAUD'? on 
this subject merits brief summary, as his conclusions are quite revolutionary. 
He has described for the first time the anatomical and cytological characters of 
™ Gaspar, J., Analyses des sarments américains. Ann. Inst. Cent. Ampél. 
Roy. Hongrois 3; nen pls. 4-12. 1905. 
5 IsrvANrFFI, Gy. de, D’une maladie de la vigne causée par le Ph-yllosticta Bizzo- 
zeriana. Idem, 167-182. ap 1}. 1906: 
‘6 IsTvANFFI, ae de, Etudes scbitnistegiaiinn et mycologiques sur le rot gris 
de la vigne. Idem 183-360. pls. 14-21. 1995. 
17 GALLAUD, L, Etudes sur les mycorhizes endotrophes. Rev. Gén. Bot. 17: 
pls. 4. 1905. 
