Abstract
AN investigation of the composition of cow's milk in Egypt has been undertaken through seven lactation seasons, from 1937 to 1944, involving 2,817 samples. The cows were those forming the herd of the Faculty of Agriculture ; most of them were born and reared in the farm of the Faculty, and the rest were bought from lower Egypt. A wide variation in constituents has been shown, and this is due to the lack of particular breed and to the seasonal variations. The accompanying table shows the total average of milk constituents, their maximum and minimum, and the extent of increase and decrease above and below the average :