Cause of plague, 28 Conveyance of plague, 28 Control of plague, 40 Crowell, Dr. B. C., 14 China, plague in, 21, 22, 24 California, plague in, 22 Central Africa, plague in, 22 California ground squirrel, 28 Contact, plague through, 29 Contagious plague, 29 Contagion, India Plague Commission on, 33 Cockroaches in plague conveyance, 29, 33 Cats, plague in, 29, 76, 149 Chronic plague in rats, 35 Chronic rat plague, India Plague Commission on, 35 Currie, Dr. D. H., 31 Creel, Dr. R. H., U. S. P. H. Service, 31, 101 Castellani, Dr. Aldo (dedication), 179 Ceratophyllus fasciatus, 32 Cat fleas, 32 Ctenocephalus, 32 Citellus beecheyi, 28 Cholera epidemics, spontaneous abatement of, 35 organism, attenuation of virulence of, 35 California, a plague centre, 41 Cost of rat proofing, 49 Chemical poisoning of rats and ground squirrels, 54 Community, summary of prevention for, 56 Close of year 1912 in Manila, 67 Closing ends of bamboo timbers, 71 Cat plague case in Manila, 76, 149 fleas, 78 Correspondence of Philippine and Japan conditions, 83 Comparative statistics in rat catching methods, 89 Cresols, 94 Coloration of rats, 99 Conformation of skulls in rats, 101 Climbing ability of rats, 102 Collection and forwarding of rats (Manila), 122, 123 Case of Mr. C. (Manila), 124, 125 Concealing plague cases, 94 Conclusions concerning blood culture in plague diagnosis, 136 from observations of plague outbreak among experimental animals (Manila), 146 Cat, natural plague infection in, 149-154 Conditions, treatment and prognosis, 173 Combined vaccines, 179 Diagnosis of plague, 165 Definition of plague, 28 Digestive tract, infection through, 29 Dog fleas, 32 Droplet infection, 38 Destruction of rats by diseases, 53 Danysz bacterial virus, 53 bacillus, 53 use of, in Odessa, 53 use of, in Cape Town, 53 Destruction of rats by domestic animals, 54 Disinfection of ship cargoes, 56 Dead, proper disposal of, 56 Dispersion of fleas from rat cadavers, Manila, 65 Death-rate of rats, 73 Dutch India, Batavia (Java), 77 Duration of life of fasting fleas, 79 Dead rats in bamboo house timbers, 87 Disinfection, theatre, Manila, 93 Deception and concealment of plague cases, 94 Differential points in rats, unreliability of, 101 Driving out rats with formaldehyde gas (Manila), 106 Dangers of anti-plague work, 163, 164 Diagnosis, rapid, of plague, importance of, 166 biologic, of plague, 167 non-biologic, 169, 170 Dosage and technique of serum administration, 176, 177