878 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



sprayed 267§. The increased yield due to three sprayings was 27§ bushels 

 per acre, while that due to seven sprayings amounted to 45 bushels per 

 acre. There being no damage from blight or "bugs," the increased yield 

 on the sprayed rows in the Long Island experiment must have been 

 largely due to better protection against flea-beetles. 



"The bordeaux was made according to the 1 to 8 formula; that is, 

 one pound of copper sulphate was used in each eight gallons of bordeaux, 

 or six pounds to the barrel. This is the formula usually recommended 

 for spraying Potatos. The amount of lime required was determined by 

 the yellow prussiate of potash test." 



The bordeaux was applied by means of a knapsack sprayer. 



The directions given for spraying are that the plants should receive 

 the first application when they are 6-8 inches high, and that the treat- 

 ment should be repeated at intervals of about two weeks, so long as the 

 plants continue to grow. Usually six applications will be required. The 

 Bordeaux mixture should contain six pounds of copper sulphate to each 

 fifty gallons of water. — B. N. 



Privet Disease (U.S.A. Exp. Stn. Oklahoma, Ann. Bep. xiii. 1904). 

 An " anthracnose " of privet attacking the stem, which is killed at the 

 point of attack, the leaves above that point dying, is described. The 

 specific fungus is not named. The spore-bearing spots (? perithecia) 

 appear on the bark after the death of the shoot. It is recommended to 

 remove badly infected hedges and burn them, not replanting on the same 

 spot, and to spray with Bordeaux mixture those that are in danger of 

 infection. Spring, just as the buds are bursting, is the time to spray. 



F. J. C. 



Proteaeeae : Anatomy of the Fruit and Seed. By Justin Schwarz- 

 bart (Windsheim) (Beih. Bot. Cent, xviii. Abt. ii. pp. 27-78 ; 11 text 

 figures). — Gives a detailed account of the anatomy of the fruits and seeds 

 in fourteen genera and fifty-three species of this order. Persoonia has 

 stone fruits ; Isopogon, Pctropliila, Conospcrmum, and Leucadendron 

 nuts. The Grcvilloidecs (Follicular es) have winged seeds which in many 

 respects closely resemble Coniferous seeds. The radicle is generally very 

 short and the cotyledons fleshy (in Persoimia 2 6 cotyledons). A peculiar 

 feature is the presence of a " ruminated " layer in the fruit shell of all the 

 species (except Petrophila and Conospcrmum) examined. This consists 

 of prismatic cells with the radial and inner walls strongly sclerotic, but 

 with irregular anastomosing canals. This thickening material gives the 

 wood-reaction. The cells of this layer usually contain crystals. The 

 seeds contain compressed and scanty remains of albumen, and in a few 

 species protein grains occur in the albumen. The embryo has fatty oil 

 and albumen, but no starch. Macadamia is quite erroneously described 

 in recent systematic works. The supposed endocarp belongs to the testa, 

 which has in this genus extraordinary thickness. Stoiocarpus also has 

 a very peculiar structure. Banksia and Dryandra have peculiar dissepi- 

 ments. — G. F. S.-E. 



Proteases : The Proteases of Plants. By S. H. Vines (Ann. Bot. 

 xviii. April 1901, pp. 289-316). — An account of the author's researches on 



