Letter Published: 02 August 1958 Hæmoglobin and Potassium Blood Types in Some Non-British Breeds of Sheep and in Certain Rare British Breeds J. V. EVANS, H. HARRIS & F. L. WARREN Nature 182, 320 ...

The development of sheep breeds in Southern England between 1750 and 1900 was a response by ordinary farmers to changes in the relative price levels of cereals, mutton, wool and tallow. Between c.

Letter Published: 13 November 1954 Electrolyte Concentrations in Red Blood Cells of British Breeds of Sheep JOHN V. EVANS Nature 174, 931–932 (1954) Cite this article ...