Vlll. 



PUBLICATIONS FOR SALE. 



Vol. XIX. PL i.— The Trinidad Cane Farming Industry; Sugar 

 Cane Blight in Trinidad ; Froghopper Blight in Trinidad ; Implemental 

 Tillage ; Mosaic Disease of Sugar Cane in Trinidad, &c., &c., &c. 



Vol. XIX. Pt. 2. — Report on the Froghopper Blight of Sugar Cane in 

 Trinidad ; Trinidad Seedlings and Tests of Varieties ; Cacti of Trinidac ; 

 Storing Sweet Potatoes ; Seasoning Standing Timber, &c., &c. 



Vol. XIX. Pt. 3.— Sugar Cane Pests and Diseases 1920; Diseases of 

 Animals Ordinance ; Rotation Scheme for a Small Holding ; Cacao 

 Prize Competition 1920-21, &c., &c. 



Our Local Foods : Their Production and Use, by W. G. Freeman, 

 and R. O. Williams.— Price 3d. 



The Dasheen : Its Uses and Culture. Illustrated. — Price 3d. 



The Avocado in Trinidad and Tobago. — Illustrated. — Price 3d. 



Insects Affecting Vegetables in Trinidad and Tobago, by 

 F. W. Urich. Symptoms of pests. Treatment, Preparation of 

 Insecticides, etc. — Illustrated. — Price 3d. 



Life History and Control of the Cacao Beetle, 3 coloured plates, 

 by P. L. Guppy. — Price 6d. 



Insect Notes for 1910-11. Miscellaneous Notes on Cacao Pests, 

 by F. W. Urich.— Price 3d. 



Notes on some Insects affecting the Coconut Palm, one coloured 

 plate by F. W. Urich and P. L. Guppy.— Price 3d. 



Rearing of the Vermilion Froghopper Egg Parasite, by 

 F. W. Urich. -Price Id. 



The Sugar Cane Froghopper, six plates (3 coloured), by 

 F. W. Urich.— Price 9d. 



The Froghopper Egg Parasite and its Colonization in Cane 

 Fields, by F. W. Urich.— Price Id. 



The Mongoose in Trinidad and methods of destroying it, 2 plates, 

 by F. W. Urich.— Price 3d. 



Control of Cacao Thrips. (Illustrated) by F. W. Urich.— Price 3d. 



Annual Reports, Department of Agriculture, 1916, 1917 & 1918.— 

 Price Is. 9d. each, 1919-1920, price 2/3. 



Memoir No. 1 - Froghopper-Blight of Sugar-Cane in Trinidad by 

 C. B. WilUams, M.A., F.E.S.— Price 2/6. 9 plates (2 coloured) and 32 other 

 illustrations. 



Memoir No. 2. — The Butterflies of Trinidad by W. J. Kaye, f.e.s. 

 Price 5s. one coloured plate. 



All publications can be obtained from the Head Office of the Depart- 

 ment, St. Clair Experiment Station, post free within the Colony. The 

 Bulletin is also on sale at Messrs. Muir, Marshall, and Davidson & Todd, 

 Port-of-Spain. 



