[Illustration: 1. THE FIELD-CRICKET. A DUEL BETWEEN RIVALS. 2. THE FIELD-CRICKET. THE DEFEATED RIVAL RETIRES, INSULTED BY THE VICTOR.] Not until the end of October, when the first frosts are at hand, does the work of burrowing commence. The operation is very simple, as far as I can tell from what I have learned from the insect in captivity. The burrow is never made at a bare or conspicuous point; it is always commenced under the shelter of a faded leaf of lettuce, the remains of the food provided. This takes the place of the curtain of grass so necessary to preserve the mysterious privacy of the establishment. The little miner scratches with his fore-claws, but also makes use of the pincers of his mandibles in order to remove pieces of grit or gravel of any size. I see him stamping with his powerful hinder limbs, which are provided with a double row of spines; I see him raking and sweeping backwards the excavated material, and spreading it out in an inclined plane. This is his whole method. At first the work goes forward merrily. The excavator disappears under the easily excavated soil of his prison after two hours' labour. At intervals he returns to the orifice, always tail first, and always raking and sweeping. If fatigue overcomes him he rests on the threshold of his burrow, his head projecting outwards, his antennae gently vibrating. Presently he re-enters his tunnel and sets to work again with his pincers and rakes. Presently his periods of repose grow longer and tire my patience. The most important part of the work is now completed. Once the burrow has attained a depth of a couple of inches, it forms a sufficient shelter for the needs of the moment. The rest will be the work of time; a labour resumed at will, for a short time daily. The burrow will be made deeper and wider as the growth of the inmate and the inclemency of the season demand. Even in winter, if the weather is mild, and the sun smiles upon the threshold of his dwelling, one may sometimes surprise the Cricket thrusting out small quantities of loosened earth, a sign of enlargement and of further burrowing. In the midst of the joys of spring the cares of the house still continue; it is constantly restored and perfected until the death of the occupant.