8 DEPARTMENT OF AGEICULTURE BULS. 951-975. 



Department Bulletin No. 968. — Buying Farms with Land-bank Loans: page. 



Purpose and methods of study 1 



Extent to which Federal farm loans have been used in purchasing farm 



land 4 



Extent to which landless farmers have, been aided by the Federal land 



banks 5 



Use of the Federal farm loan system by tenants as an aid in buying farm 



land .' '. 6 



I Use of land already owned to facilitate acquisition of new land 7 



Ratio of the Federal farm loan to the value of farm purchased 7 



Cost of obtaining a Federal farm loan 8 



Methods employed to finance the purchase price above the amount ob- 

 tained fi'om the Federal farm loan system 11 



Summary and conclusions 20 



Suggestions for additional credit on second-mortgage security 23 



Publications relating to farm credit 27 



Publications of the Federal Farm Loan Board of the Treasury Department. . 27 



Department Bulletin No. 969. — The Mexican Whorled Milkweed (As- 

 clepias Mexicana) as a Poisonous Plant: 



Introduction 1 



Description of Asdepias mexicana 3 



Distribution and habits of A . mexicana 3 



Experimental work 4 



Typical case, sheep 610 5 



Results of experimental work and conclusions 7 



S vmptoms 7 



Delay in development of symptoms 7 



Duration of sickness 9 



Autops V findings 9 



Pathological changes in tissues 10 



Toxic and lethal doses 13 



Comparative toxicity of species of whorled milkweed 15 



Animals affected 16 



Summary 16 



Literature cited 16 



Department Bulletin No. 970. — Manufacture of Cows'-milk Roquefort 

 Cheese: 



The manufacture of imported Roquefort 2 



Composition and characteristics of Roquefort 3 



Composition of sheep's milk 6 



The manufacture of cow's- milk Roquefort 6 



Preparation of mold powder for inoculation 9 



Ripening the cheese 17 



Equipment for curing Roquefort 18 



Phenomena of ripening 20 



Losses in curing 23 



Use of tin foil 24 



Cost of manufacture 25 



Possibilities for domestic Roquefort 26 



Summary 27 



Department Bulletin No. 971.— Inheritance of Ramose iNPLORESCENgE 

 in Maize: 



The ramose ear variation in maize 1 



Description of the parents 3 



First generation 4 



Second generation 5 



Correlation of the ear characters of the second generation 7 



Third generation 8 



Fourth generation 9 



Discussion 13 



Conclusions 18 



Literature cited 20 



