The figures supplied by one large company are interesting; they show that, on an average, cattle, when placed upon alfalfa lands, improve in value at the rate of $2.00 per head per month, so it is easy to place a value on its feeding properties. Thus, we will take a camp under alfalfa capable of carrying 10,000 head of cattle all the year round, where as the fattened animals are sold off an equal number is bought to replace them. Such a camp would bring in a clear profit of $200,000 per annum, and the property should be worth £175,000 sterling. An animal that has been kept all its life on rough camp, and, when too old for breeding, is placed for the first time on alfalfa lands, fattens extremely quickly, and the meat is tender and in quality compares favourably with any other beef. No business in Argentina of the same importance has shown such good returns as cattle breeding, and these results have been chiefly brought about by the introduction of alfalfa, and a knowledge of the life history of alfalfa is of the greatest importance to the cattle farmer. All cereal crops take from the soil mineral matter and nitrogen. Therefore, after continuous cropping the land becomes exhausted and generally poorer; experience has taught us that rotation of crops is a necessity to alleviate the strain on the soil, and such an axiom has this become that in many cases English landlords insist that their leases shall contain a clause binding the tenants to grow certain stated crops in rotation.