Show ridding the country of prairie dogs washington attempts made last spring at poisoning prairies dogs in natio national naf fb forests rests on an extensive scale seem to have been highly successful in ridding selected areas of these small pests and plans are now being made to carry on the work much more widely next nest year the first experiments in this line were vero niada made iri in new mexico by a stockman who has since entered the forest service in 1901 dr C hart merriam Merr lam chief of the division of biological survey of the department of agriculture made a report upon the prairie dog of the great plains in which the damage done by the dogs was pointed out anti and various methods ot of poisoning them were suggested this report of dr Merr iams may bo be said to have blazed the way for teal leal work in prairie dog extermination prairie dogs are arc very obnoxious to the stockmen stoc kmen mon for or they devour much brass and undermine the surface ot of the ground with their burrows where they establish themselves the destruction st et of the range Is ig only a question of time the poison Is prepared by coating wheat witha d preparation of vine cyanide of potassium anise oil and molasses when a sufficient clent quantity Is I 1 re ready the poisoned wheat I 1 is carried te to the aib field of operations |