ABSTRACTS. 



973 



Containing directions for Sugar Beet culture, and the results of experi- 

 ments during 1898, with cost per acre and analysis of produce. 



M. C. C. 



Sundials. By G. Gordon {Garcl Mag. 2,510, p. 789 ; 7/12/1901).— 

 Interesting article on sundials of various countries, with historic notes of 

 the more famous examples. Excellent illustrations are given of the sun- 

 dials at Glamis Castle, Beechfield, Claverton Manor, and the Wilderness, 

 Box, the three last named being beautiful in design. — TF. G. 



Superstitions. Anon. {Bull. Soc. Hort. Loiret, tome vi. No. 13, 

 p. 550 ; 1901). — An amusing and interesting account of various prejudices 

 and superstitions relating to plants in practice previous to the eighteenth 

 century. Some of the instructions for mixed grafting, &c.. to obtain 

 stoneless varieties of fruit and other desirable but unlikely results, are 

 more creditable to the patience and faith, than the power of criticism, of 

 those ages. — E. A. B. 



Thermometers, The Use of. By Edward Mawley {Garden, 

 No. 1,578, p. lOG; 15/2/1902).— The gardener who takes note of the weather 

 has an advantage, and the writer of this article tells how meteorological 

 observations may be taken. The various forms of thermometers are 

 described and how to use them. The subject of rainfall also receives 

 attention, and instructions are given as to registering it by means of the 

 raingauge. — E. T. C. 



Thrips in Greenhouses. By W. E. Hinds {Proc. 11th Annual 

 Convention Soc. Anier. Florists ; Aug. 1901, with fig. 2). — Description of 

 a small species of thrips, Thrifs tabaci, first made known in 1888 as doing 

 immense injury to the tobacco crop in Russia. In the United States its 

 depredations have been chiefly confined to Onions, but it also selected Cab- 

 bages and Strawberries, and at length has found its way into greenhouses. 

 The remedy experimented with has been the vaporisation of " Nikoteen," 

 a tobacco product manufactured in Chicago. Nearly all the thrips were 

 killed.— If . C. C. 



Thrips on Cacao. By H. Maxwell Lefroy {Jour. Imp. Dep. Agr. 

 W.I. vol. ii. No. 3, p. 177). — The Cacao trees of Grenada are threatened 

 with an invasion of thrips. At present no very great damage has been 

 done, but should the pest increase the industry may be destroyed. The 

 article is of much value for any in other parts of the world who sutler 

 heavily from thrips. It has also a general value from the recipes which 

 it gives, with directions for use, of various dift'erent emulsions and washes 

 which have been found effective. — W. W. 



Tillandsia Duratii, Vis. By L. Wittmack {Gartcnflora, p. 452, 

 fig. ; 1/9/1901). — A photograph and brief notice of this epiphyte. 



J. P. 



' Tobacco. The Stalk Worm, A new Enemy to young- Tobacco. 

 By Prof. W. G. Johnson ( U.S.A. Hort. Soc. Maryland, vol. ii.l899, with tigs.). 



