ix 



MINISTRY OF AGRICULTURE AND FISHERIES. 



(Miscellaneous Publications, No. 85.) 

 REPORT ON A TEST OF 



HEDGE AND STUMP CLEARING DEVICES. 



This well-illustrated report is the first of a series which it is 

 proposed to prepare upon methods and devices used for 

 specific agricultural operations. 



The description, method of operation and account of trial, 

 is given in each case, for hand grubbing tools, timber jacks, 

 stump extractor, triple horse puller, compound steam tractor, 

 steam ploughing engine, motor tractor, farmer's dynamite, 

 liquid air and amatol. 



Tables are given showing the detailed results of the test. 

 Price 2s. 6d. net. Post free. 



(Miscellaneous Publications, No. 36.) 

 Wart Disease of Potatoes Order, 1919. 



REGISTER OF GROWERS OF CERTIFIED IMMUNE 

 VARIETIES OF POTATOES IN ENGLAND AND 

 WALES, SEASON, 1921-22. 



Seed potato merchants are reminded that Officers of the 

 Ministry of Agriculture have inspected during the growing 

 season fields of potatoes of immune varieties, and have granted 

 certificates for such crops as were true to type and free from 

 " rogues." The Ministry has now issued a register of the 

 growers of these certified potatoes, so as to enable merchants 

 to purchase stocks as required under the Wart Disease Order. 

 Growers are reminded that only seed from crops which have 

 been so certified may be bought for planting on land which is 

 infected with Wart Disease. 



Price 2s. 6d. net. Post free. 



Order direct from the Ministry, 10, Whitehall Place, 

 London, S.W.I. 



