BABY chicks are so pretty, and appeal so strongly to the sentimental feeling most people have for infant things, that they are invariably well cared for until they are deposed by new arrivals, or reach the half-fledged, long-legged period of gawky ugliness. Then they are almost surely neglected, especially by the amateur, who does not realise that the intermediate stages are of paramount importance. It is a waste of time and money to hatch chicks and feed hens heavily in the winter, if they are allowed to reach a standstill period during growth.