4 AUGUST 1923, page 7

The Sheep-dog And His Work.

TN order to see a sheep-dog work at its best, one -I- should have a day with a hill-shepherd when he is out gathering his hundreds of woolly charges which pasture on the steep......

Science.

THE RIDDLE OF SEX. F Ew subjects have provided a more popular play- ground for amateur speculation than that of sex. Few subjects of direct human interest have yielded more......