. Animals competitors; profit and loss from the wild four-footed tenants of the farm. Zoology, Economic. [from old catalog]. 116 ANIMAL COMPETITORS way. His movement in digging often seems as rapid and automatic as that of a shuttle. Except in times of deep frost, the burrows are seldom more than a foot underground, and generally about six inches. At intervals, often within a few feet, the gopher comes to the sur- face to throw up a little hill of dirt; but the opening which he makes is closed by being. DIAGRAM OF A GOPHERS BURROWING. packed so full of dirt that no trace of the tunnel is visib
. Animals competitors; profit and loss from the wild four-footed tenants of the farm. Zoology, Economic. [from old catalog]. 116 ANIMAL COMPETITORS way. His movement in digging often seems as rapid and automatic as that of a shuttle. Except in times of deep frost, the burrows are seldom more than a foot underground, and generally about six inches. At intervals, often within a few feet, the gopher comes to the sur- face to throw up a little hill of dirt; but the opening which he makes is closed by being. DIAGRAM OF A GOPHERS BURROWING. packed so full of dirt that no trace of the tunnel is visible except the little mound. The gopher goes on digging in winter as well as in summer; but if the frost prevents him from coming to the surface, he uses a cross section of his tunnel into which to pack the earth which he has dug for his new excavations. These tightly packed cylinders of earth are often turned up by the plow. Pocket-gophers apparently breed only once a. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ingersoll, Ernest, 1852-1946. New York, Sturgis & Walton company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoologyeconomicfromo
