National Geographic : 1949 Feb
Biggest Worm Farm Caters to Platypuses 279 Breeding Worms Get Pablum and Corn Meal for Supper Concealed beneath the slats, the worms will crawl up to the food and deposit their egg capsules near by (page 270). Boxes are left unmolested for 15 days. Then capsules are removed and placed in growing pits. National Geographic Photographer Justin N. Locke Each Pinhead Capsule Holds from 1 to 20 Worm Eggs The gelatinlike cocoons are about one-eighth by one-sixteenth of an inch in size; 150 barely fill a tea spoon. Here the attendant touches one gingerly with a paper match, for it is extremely fragile. Fertile eggs hatch in about 18 days. Leafworms breed when about 120 days old; garden worms a few days earlier.