1-1/2 quarts of boiling water, and 5/8 pint of corn sirup.

Scatter poison, when the natural food of the kangaroo rat is
scarce, on clean hard places near the holes, 1 quart to 50 holes.

If powdered strychnine alkaloid is used, prepare the hot starch
paste first. Then sift strychnine and baking soda, previously
thoroughly mixed, into the hot starch paste and stir to a creamy
mass. Proceed as in the above directions with sirup, glycerin,
etc.

Use this poison within five days after mixing or retain in
air-tight containers.

_Caution._--All poison containers and all utensils used in the
preparation of poison should be kept _plainly labeled_ and _out of
reach of children_, irresponsible persons, and live stock.

A spoonful of the poisoned grain scattered about the used entrances
of a mound is sufficient, and prebaiting is not necessary, as with
prairie dogs.

A word of caution should perhaps be offered in connection with control
measures. As man has come to occupy a greater portion of the earth's
surface, and as he has become more and more the master of his
environment, he has inevitably disturbed the relationships of the birds
and mammals about him, has upset the balance of nature. If he kills the
carnivorous species because of their depredations on game and live stock
he must be prepared to cope with the increased hordes of rodents which
feed on vegetation and on which the carnivorous animals act as a check.