1922.] 



Additions to the Libbaby. 



191 



Fletcher, F. J .— Market Nursery Work Series. Vol. HI :— Roeea for 

 Market (70 pp.). Vol. IV :— Carnations and Pinks (06 pp.). Jjoudou : 

 Benn Bros., 1922, 4s. 6d. net each. 1.03.52(02).] 



Plant Diseases. 



Ilalfs, E. Marguerite.— kn Abstract of the Legislation in Force in the 

 British Empire dealing with Plant Pests and Diseases up to the Year 



1920. (05 pp.) London : Imperial Bureau of Entomology, 1921, 

 2s. 6d. net. 



Royal Society. — Reports of the Grain Pests (War) Committee. No. 9. 



(52 pp.) London : Harrison & Sons, Ltd., 1921, Is. 6d. [03.27-31.] 

 U.S. Department of Agriculture.— Bull. 1023 :— The Relative Toxicity of 



Strychnine to the Rat. (19 pp.) Washington, 1922. [03.2(59.] 



Veterinary Science. 



Archer. A. H. — The Stockowner's Veterinary Aid: Containing Elementaiy 

 Principles and Outlines of Treatment of Diseases and Injuries lor 

 General and Army Requirements. (130 pp.) London : Crosby Lock- 

 wood & Son, 1921, 7s. 0d. net. [619(02).] 



University College of North Wales, Department of Agriculture.— Notes 

 on the Liver Rot Epidemic of 1920-21 in North Wales. (8 pp.) 

 Bangor, 1922. [59.109; 019.3.] 



Dairying. 



West of Scotland Agricultural College. — Bull. 98 : — Butter-making on the 

 Farm. (02 pp. + 8 plates.) Glasgow, 1921, 2s. [03.72(02).] 



Poultry. 



Toovey, T. W .— Commercial Poultry Farming : A Description of the 

 King's Langley Poultry Farm and its Modus Operandi. (2nd Edition.) 

 (139 pp.) London : Crosby Lock wood & Son, 1922, 0s. net. [03.05(02).] 



Engineering. 



Society of Motor Manufacturers and Traders— Report on the Tractor 



Trials held at Shrawardine, near Shrewsbury, Sept. 20th-24th, 1921. 



(100 pp.) London : Offices of the Society, 1921, 2s. 6d. [03.175(04).] 

 Gougis, A. — Manuel du Conducteur de Machines Agricoles. (350 pp.) 



Paris : Librairie Agricole de la Maison Rustique, 1921, 12 fr. 



[03.17(02).] 



U.S. Department of Agriculture.— Bull. 997 :— The Cost and Utilization 

 of Power on Farms where Tractors are Owned. (61 pp.) Washington. 



1921. [63.175.] ° 



Economics. 



TJ.S. Department of Agriculture. — Bull. 987 : — Handbook of Foreign Agri- 

 cultural Statistics. (69 pp.) Washington, 1921. [31(04).] ° 



U.S. Department of Agriculture.— Bull. 1043 :— Crop Insurance : Risks, 

 Losses and Principles of Protection. (27 pp.) Washington, 1922.' 



* * * * * 



