. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. TNVICSTKJATION OK 1-11' II ISroKV 31 of the |)a[)('r coniicclcd wi( li t lie reels, and the edi^es were bent ii[)\Viir(l ill such a manner as lo prevent the escape of (he hii^a IVoiii (ho sides of the tahh>. The ])ai)er on the reels consisted of ordinary wrapping paper IS inches in wicHli. The larva was placed in the center of the table and the record of its travels was made wilh a lead jxMicil. The experiment was hei^un at a. m., June IS, 1<)1(), and was conducted by Mr. ('? W. Collins, witli the assi
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. TNVICSTKJATION OK 1-11' II ISroKV 31 of the |)a[)('r coniicclcd wi( li t lie reels, and the edi^es were bent ii[)\Viir(l ill such a manner as lo prevent the escape of (he hii^a IVoiii (ho sides of the tahh>. The ])ai)er on the reels consisted of ordinary wrapping paper IS inches in wicHli. The larva was placed in the center of the table and the record of its travels was made wilh a lead jxMicil. The experiment was hei^un at a. m., June IS, 1<)1(), and was conducted by Mr. ('? W. Collins, witli the assistance from time to time of various • v' 1 .i i. Fig. 14.—Method of securing'lata on the distance traveled by larvreof Calosoina si/mplmnta. (Original.) members of the laboratory force. It was necessary to carry on this experiment continuously until the larva died, and as it remained active for 72 hours shifts of men were used so that there was no })rcak in the record. The larva traveled ftir more rapidly tlian was expected and it became necessary from time to time to substitute a fresh roll of paper in place of the one containing the record. In all 11 rolls were used and careful measurements indicate that during its life the larva. 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 United States. Bureau of Entomology. Washington : G. P. O.
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Keywords: ., bookcentury1900, bookdecade1900, booksubje, booksubjectentomology
