THE Ministry of Agriculture has issued a new and enlarged edition of Bulletin 36, “Manures and Manuring” (H.M. Stationery Office, price 2s.). A number of additions have been made since the last issue, the preliminary section dealing with the principles that govern the manuring of farm crops having been specially expanded. As before, the bulletin is divided into three main sections, namely, organic manures, artificial fertilizers and the purchase and use of artificial manures. The information is essentially practical, and should enable the farmer to make the fullest use of the wide variety of fertilizers now available. In view of the differences in local conditions, complete generalizations are of course impossible, and in the event of uncertainty the farmer is advised to consult the agricultural organizer for the county in which he resides. A pamphlet (Form A. 705/TG.) giving names and addresses of advisory staffs may be obtained free on application to the Secretary of the Ministry of Agriculture, 10 Whitehall Place, London, S.W.I.