After the chickens have been hatched sufficiently long to require feeding they are ready for market and are then sorted according to sex and placed in separate shallow woven trays thirty inches in diameter. The sorting is done rapidly and accurately through the sense of touch, the operator recognizing the sex by gently pinching the anus. Four trays of young chickens were in the store fronting on the street as we entered and several women were making purchases, taking five to a dozen each. Dr. Haden informed me that nearly every family in the cities, and in the country villages raise a few, but only a few, chickens and it is a common sight to see grown chickens walking about the narrow streets, in and out of the open stores, dodging the feet of the occupants and passers by. At the time of our visit this family was paying at the rate of ten cents, Mexican, for nine hens' and eight ducks' eggs, and were selling their largest strong chickens at three cents each. These figures, translated into our currency, make the purchase price for eggs nearly 48 cents, and the selling price for the young chicks $1.29, per hundred, or thirteen eggs for six cents and seven chickens for nine cents.
It is difficult even to conceive, not to say measure, the vast import of this solution of how to maintain, in the millions of homes, a constantly accessible supply of absolutely fresh and thoroughly sanitary animal food in the form of meat and eggs. The great density of population in these countries makes the problem of supplying eggs to the people very different from that in the United States. Our 250,600,000 fowl in 1900 was at the rate of three to each person but in Japan, with her 16,500,000 fowl, she had in 1906 but one for every three people. Her number per square mile of cultivated land however was 825, while in the United States, in 1900, the number of fowls per square mile of improved farm land was but 387. To give to Japan three fowls to each person there would needs be an average of about nine to each acre of her cultivated land, whereas in the United States there were in 1900
