154 
340. Solms-Laubach. Fossil botany, being an introduction to Paleopliytology, 
from the standpoint of the botanist; translated by Henry E. F. Garnsey; re¬ 
vised by I. B. Balfour. Clarendon Press, 8vo, Oxford, 1891, pp. 401, many 
figs. See review, p. 148. (E.F. S.). 
341. Whitehead, Chas. Methods of preventing and checking the attacks of insects and 
fungi. Jour. Roy. Agric. Soc., 3d ser., vol. 2, London, June 30, 1891, pp. 217- 
256, figs. 26. A comprehensive paper mentioning many of the fungous dis¬ 
eases of plants, with history and treatment, formula? for fungicides, and 23 
figures of machines for their application. The subject is presented under 
four heads, viz: Corn crops, root and vegetable crops, fruit crops, and 
hops. Attention is about equally divided between fungi and insects. (M. 
B. W.) 
B. —DISEASES OF NONPARASITIC OR UNCERTAIN ORIGIN. 
342. Alwood, W. B. Diseases of plants. Southern Planter, 52d year, No. 10, Rich¬ 
mond, Oct., 1891, pp. 552-553. Remarks presence in Virginia of peach 
yellows, where it has laid waste a large portion of the best peach-growing 
region of the State. Refers to inquiries from California in regard to Vir¬ 
ginia nursery stock. Author has not seen the yellows in the nurseries. 
Notices presence of black rot of grapes controllable by weak formula of Bor¬ 
deaux mixture and calls attention to presence of leaf spot of the apple dis¬ 
tinct from the apple rust caused by Rcestelia. (D. G. F.) 
343. Bailey, L. H. Peach yellows. Cornell Univ. Agric. Ex. Sta., Bull. 25, Ithaca, 
Dec., 1890, pp. 178-179. Notes presence and spreading of yellows in New 
York State; also work of Dr. Erwin F. Smith in Maryland. (D. G. F.) 
344. C [ollins] , A. L. Causes of die back. Fla. Disp., Farmer and Fruit Grower, new 
ser., vol. 3, No. 8, Jacksonville, Feb. 19, 1891, p. 143. Discusses cause of die 
back in oranges. Thinks due to overstimulation by nitrates. (D. G. F.) 
345. Galloway, B. T. La Maladiede la vigne en Califomie. [The vine disease of Cal¬ 
ifornia.] Progres Agricole et Viticole, 8 Ann., No. 48, Montpellier, Nov. 29, 
1891, pp. 509-512. Gives brief notice of the work of the special agent, Mr. 
Pierce, on the California vine disease, as given in his preliminary report, 
not yet published. (J. F. J.) v 
346. Goethe, R. Eisenvitriol als Heilmittel der Gelbsucht der Obstbaume. Berieht K. 
Lehranstalt fur Obst und Weinbau, Jahrg. 1889-1890, Wiesbaden, 1891, p. 
30-31. Reviews Sachs’s work on the treatment of chlorotic plants. Tried ex¬ 
periments with iron sulphate on several varieties of fruit trees with very 
favorable results. One kg. of iron sulphate was used for smaller trees, 2 kg. 
for larger. Mentions certain varieties of pear and apple which need more 
iron and consequently are more subject to disease. Treated trees were less 
attacked in some cases by the leaf Aphis and Schizoneura. (W. T. S.) 
347. Gillett, M. E. Sour stocks the only preventive of foot rot. Fla. Disp., Farmer 
and Fruit Grower, new ser., vol. 3, No. 44, Jacksonville, Oct. 29, 1891, p. 871. 
Reports doubtfully the successful use of sour stocks as a preventive of the 
foot rot. (D. G. F.) 
348. Hart, W. S. American Pomological Society meeting in Washington, Sept. 22, 23 and 24, 
1891. Fla. Disp., Farmer and Fruit Grower, new ser., vol. 3, No. 40, Oct. 1, 
1891, pp. 783-784. Notes on method of exposure of roots and washing of 
same as a cure for the Mai di Goma or foot rot. Also petition of secretary 
of Interlachen Hort. Society, that agent of U. S. Department of Agriculture 
be sent to investigate the orange diseases of Florida. (D. G. FA 
349. Hart, W. S. Foot rot does attack sour stocks. Fla. Disp., Farmer and Fruit Grower*, 
new ser., vol. 3, No. 45, Nov. 5, 1891, p. 891, 2 cols. Discusses in popular 
language the foot rot of oranges, claiming the disease is present on sour stock, 
