178 



Index 



Nuttall's cottontail, 27 

 Nylon, 131 



O 



Oils for insect sprays, 75 

 Onions, control of insects on, 167 



Paints containing DDT, 69, 89, 155 



Panama, 23, 24 



Panama Canal, 23, 114 



Paris, plague epidemic in, 5, 6 



Paul, John R., 106 



Peas, control of insects on, 167 



Pediculus capitis, 91 



Pediculus corporis, 91 



Peet-Grady, chamber, 72, 96, 97 



method, 72 

 Penicillin, 142, 145 

 Pestroy, 90 

 Philadelphia, yellow fever epidemic 



in, 23 

 Phthirius pubis, 91 

 Pine sawfly, 62, 134 

 Pine-tip moth, 62, 134 

 Pink eye, 27 

 Plague, bubonic, 5 



effect of, on Roman Empire, 5 



epidemics, 5-10, 12 



relationship of rats and fleas in 

 transmission of, 7 

 Poisons, contact, 62 



respiratory, 62 



stomach, 62 

 Poliomyelitis, 104 



epidemics, 26, 106 



role of fly in transmission of, 26, 

 105 

 Portland, Maine, yellow fever epi- 

 demic in, 23 

 Potato beetle, Colorado, control of, 

 33, 129, 168 



Potato flea beetle, control of, 168 

 Potatoes, control of insects on, 168 

 Poultry lice, control of, 157 

 Prairie dogs, as reservoirs of plague, 



9 

 Pretoria, South Africa, 28 

 Psyllids, control of, 168 

 Pubic louse, 91, 100 



control of, 101, 156 

 Pyrethrins, 122 

 Pyrethrum, 70, 80, 81, 83 

 Pyrophyllite, 68, 85, 88 



Quinine, 15, 19 



Queens, New York, spotted fever 

 epidemic in, 27 



Rabbits, as reservoirs of, plague, 9 

 spotted fever, 27 

 in Australia, 137 

 Rats, as reservoirs of, plague, 7 



typhus, 15 

 Reed, Walter, 22, 23 

 Reeves, W. C, 28 

 Residual sprays, 66, 154 

 Respiratory poisons, 62 

 Ricketts, H. T., 11, 27 

 Rickettsiae, 11, 15, 27 

 Rio de Janeiro, 24 

 Roaches, control of, 85, 152 

 Rockford, Illinois, polio epidemic in, 



106 

 Rocky Mountain spotted fever, 27, 



127 

 Roman Empire, effect of plague on, 5 

 Rome, sack of, 12 

 Ross, Ronald, 15 

 Rotenone, 63 

 Rugs, protection of, against moths, 



159 



