-17- 
INSECTICIDES— GENERAL PAPERS— Continued 
(176) Mayer, 2. L». Weil, L.,* Saunders, D. H., and Woodward, C. F. 
Hieotine Insecticides* Part IT— Preliminary Toxicity Tests 
With Micotinium Salts. U. S. Bur. Ent. and Plant Quar. 
E-725, 10 pp. May. fihroceast&J 
(177) McGovran, E. R., Bottger, G. T., Gersdorff, W. A., and Fales, J* H. 
Insect! cidal Action of Heliopsis longipes and Erlgeron spp. 
U. 3* Bur* Ent. and Plant Quar* E-736, 5 PP« November* 
2/rocessed^ 
(178) Rohwer, S. A* 
What* s Ahead for Insecticides. Soap and Sanit. Chem* 23 (6): 
135-137. 169. June. 
(179) Rubin. Max, Bird, H. R.,* Green, Nathan, and Carter, R* H* 
Toxicity of DDT to Laying Hens* Poultry Science 26 (4) J 410- 
413. July. 
(180) Siegler, E. H., and Bowen, C* V* 
Tests for Synergism in Paired Mixtures of Nicotine, Nornico- 
tine, and Anabasine* Jour* Econ* Ent. 40 (4)t 576-577* 
August* 
(181) Stage, Ho H. , and Irons, F. 
Air War Against Pests. U. S. Dept. Agr. Yearbook (Science in 
Farming) 1943-1947: 835-838* 
(182) Swingle, M. C, Gahan, J. B«, and Phillips, A. M. 
Developmental Tests of Synthetic Organic Compounds as Insecti- 
cides. Part I. U. S. Bur. Ent. and Plant Quar. E-730, 57 
pp. July. ^Processedj/ 
INSECTS AFFECTING MAN AND ANIMALS 
(183) Bishopp, F. C. 
Insect Control in Hospitals and Homes. Amer. Jour. Nursing 
47 (9) i 613-617. September* 
(184) Blakeslee, E. B«, and Bruce, W. G. 
DDT Sprays for the Control of the Gulf Coast Tick— A 
Preliminary Report* U. S. Bur. Ent. and Plant Quar. E-719, 
3 pp* April, ^roeeasedj 
(185) Ti3sot. A. N., Bruce, W. G., and Sanders, D. A. 
DDT to Control the Gulf Coast Tick. Jour. Econ. Ent. 40 (5) t 
664-666* October* 
(186) Bruce, W* G. 
The Tail Louse, a New Pest of Cattle in Florida* Jour* Econ, 
Ent* 40 (4)t 590* August* 
^ATE PLANT BQard 
