of those who died of tuberculosis in Los Angeles and the other counties of Southern California after having been in the State less than a year is shown in the table which follows: This table shows that of all who died of tuberculosis in Southern California 4.1 per cent had been in the State less than a month, altogether 12.7 per cent less than 3 months, and altogether 17.3 per cent less than 6 months. In Los Angeles 16.8 per cent, and in the other counties 18.3 per cent, of the total victims of tuberculosis had lived in California less than half a year. Moreover, while in the entire State 31.6, and in Northern and Central California together only 19.2 per cent, of all tuberculosis victims had lived here less than 10 years, in Southern California 55.7 per cent had lived in the State this length of time, the corresponding per cent being 58.3 for Los Angeles, and 50.7 for the other six counties. Native Californians form a considerable proportion of all tuberculosis victims in Northern and Central California. The per cent of native Californians among all tuberculosis victims is 37.7 for Northern California and 35.5 for Central California, or 35.7 for both divisions together, against 28.2 for the entire State and only 13.4 for Southern California. Similarly, deaths of old-time residents from tuberculosis are relatively more numerous in Northern and Central California than south of Tehachapi. Thus, the per cent of all tuberculosis victims who had lived here at least 10 years is 35.7 for Central California, 34.1 for Northern California, and 35.5 for both divisions together, in contrast with 30.0 for the State as a whole, and only 19.5 for Southern California. VITAL STATISTICS FOR JANUARY, 1906. Summary. The vital statistics reported for January, 1906, are as follows: Living births, 1,902; deaths, exclusive of stillbirths, 2,670; and marriages, 1,532, or 3,064 persons married. The population of the State, except Humboldt County, for which no returns have yet been received, is 1,853,561 in 1906, as estimated by the Census Bureau method with certain modifications heretofore explained. On the basis of this population, the vital statistics reported for January give the following annual rates: Living births, 12.3; deaths, 17.4; and marriages, 9.9, or 19.8 persons married, per 1,000 population. Tuberculosis, as ever, was the principal cause of death, with pneumonia leading heart disease for second place, as usual in the winter months. Causes of Death.-The following table gives the number of deaths, by principal classes, reported for California in January. For convenience in comparison, the proportion from each class per 1,000 deaths from all causes is likewise shown: The proportions are highest for other than epidemic general diseases, 231.1, diseases of the respiratory system, 175.3, and diseases of the circulatory system, 135.6, per 1,000 total deaths. The specific causes of death most prominent in these leading classes are respectively tuberculosis, pneumonia, and heart disease. Vol. I. MONTHLY BULLETIN. Entered as second-class matter August 15, 1905, at the post office at SACRAMENTO, FEBRUARY, 1906. No. 9. STATE BOARD OF HEALTH. MARTIN REGENSBURGER, M.D., President, San Francisco F. K. AINSWORTH, M.D. HON. W. I. FOLEY, Attorney.... STATE BUREAU OF VITAL STATISTICS. N. K. FOSTER, M.D., State Registrar..Sacramento | GEORGE D. LESLIE, Statistician... Chico Los Angeles Sacramento STATE HYGIENIC LABORATORY. University of California, Berkeley ARCHIBALD R. WARD, D.V.M., Director. VITAL STATISTICS FOR FEBRUARY. Summary.-The vital statistics reported for February are as follows: Living births, 1,762; deaths, exclusive of stillbirths, 2,223; and marriages, 1,231, or 2,462 persons married. On the basis of an estimated population of 1,853,561 for the State, exclusive of Humboldt County not yet reporting, the returns for February give the following annual rates: Births, 12.9; deaths, 15.6; and marriages, 8.6, or 17.2 persons married, per 1,000 inhabitants. The corresponding rates for January were: Births, 12.4; deaths, 17.4; and marriages, 9.9, or 19.8 persons married. So February, as compared with January, shows a slight increase in the birth-rate, with decreases in the rates for deaths and marriages, especially for deaths. As usual, tuberculosis was the principle cause of death in California. While in January pneumonia led heart disease for second place, in February the proportion of all deaths caused by diseases of the respiratory system was considerably less than that for diseases of the circuìatory system. Causes of Death.-The following table gives the number of deaths, by principal classes, reported for California in January and February, respectively. For convenience in comparison, the proportion from each class per 1,000 deaths from all causes is likewise shown: In each month, especially February, the proportion is highest for other than epidemic general diseases, the class which includes tuberculosis. In January, the proportion for diseases of the respiratory system (pneumonia, bronchitis, etc.) was much higher than that for diseases of the circulatory system (heart disease, diseases of the arteries, etc.). In February, however, conditions are reversed, the proportion for diseases of the respiratory system being considerably less than that for diseases of the circulatory system. This indicates that with the passing of winter there comes a falling off in the deaths due to pneumonia. PUBLIC HEALTH ASSOCIATION. The Sixth Session of the California Public Health Association will be held in San Francisco on April 16th. The committee has thought best to devote the time largely to a discussion of the water supplies of the State. As much of the pollution of the streams arises from sewage which is conducted into them, its disposal is entirely germane to the question. An hour will be devoted to questions and answers, and much good should be derived from this hour, where each can give and take. Governor Pardee, who is always interested in the sanitary advancement of the State, will be present and will deliver an address. It is expected that at least one of the addresses will be illustrated with lantern slides. Since this meeting comes the day before that of the State Medical Society, it will be possible for members to get the reduced rates on the railroads accorded to those attending the meeting of the latter society. All health officers should come, and come loaded with suggestions for the betterment of our State. CALIFORNIA PUBLIC HEALTH ASSOCIATION SIXTH SESSION BOARD OF HEALTH ROOM, CITY HALL, SAN FRANCISCO PROGRAM 10:00 A. M.-Greeting by the President, DR. E. VON ADELUNG, Oakland. 10:30 A. M.-"The Condition of California Water Supplies," Dr. N. K. FOSTER, Secretary of the State Board of Health. NOON RECESS. 1:30 P. M.-Address, "Advantages of Organization," by HON. GEORGE C. PARDEE, Governor of California. 2:30 P. M.-"The Sanitary Quality and Purification of Public Water Supplies," by PROF. CHARLES G. HYDE, of the University of California. 3:30 P. M.-"Sanitary Disposal of Sewage," by GEORGE L. HOXIE, City Engineer of Fresno. 4: 30 P. M.--One hour devoted to questions and answers. Each paper will be open for general discussion immediately after its reading. The discussion of the "Sanitary Disposal of Sewage" will be opened by DR. CHARLES F. CLARK, of Willits. Members of the Association will meet at the banquet board in the evening, when short addresses of a general character will be indulged in. SUMMER SCHOOL OF SANITARY SCIENCE. The State University has issued the following bulletin in relation to a course on Public Health and Sanitary Science, to be given at the coming Summer Session, providing sufficient interest is shown: Public Health and Sanitary Science will be made a special department of the next Summer Session of the University of California, from June 25 to August 4, 1906, if sufficient applications are received before April 1st to warrant the undertaking. The important problems in water supply and the disposal of sewage which constantly confront physicians and public officials will be the subject of a course offered by Charles Gilman Hyde, C.E., Assistant Professor of Sanitary Engineering, and recently a member of the engineering staff of the Massachusetts State Board of Health, which is charged by law with the inspection of the water systems and sewage plants of that commonwealth. The bacteriology of infectious diseases will be discussed by Archibald R. Ward, Assistant Professor of Bacteriology and Director of the State Hygienic Laboratory. Students will have the opportunity of daily laboratory work in bacteriology and in the microscopical examination of specimens received at the State Hygienic Laboratory. An effort will be made to suit the laboratory work to the individual needs of individual students.. This undertaking means much for the advancement of sanitary science and the protection of public health. Will you coöperate by informing others interested in such work of the opportunities offered by the University of California? It is earnestly requested that all persons who would hope to come to Berkeley for these courses should at once write to the Dean of the Summer Session, University of California, Berkeley. An effort will be made to so arrange the work that should a physician find it possible to attend the Summer Session only for two or three weeks, he would be able to get the information which would concern him most. The fee for the Summer Session is $12. This offers an exceptionally good opportunity for health officers and others interested in sanitation to get in touch with the most recent advancement in this important field. The health and life of the people are in no small degree in the hands of the health officer. On his knowledge and ability to correct wrong conditions is placed the hope and expectation of avoiding preventable disease. As a rule, health officers are able and willing workers, but many have had no special training for the position and labor under a great disadvantage, and it is a hopeful sign to see this interest shown by the State University. It is a step in the direction to what must surely come, a law requiring every health officer to attend for a few days each year a sanitary school where everything new, and much that is old, can be gone over and the useful taught in a way that will make it possible of application by the health officers. As the city or town gets the advantage of these schools in improved methods and effective work, it should by right pay the necessary expense. We sincerely hope that there will be many in attendance, for the character and ability of the men conducting it is sufficient guarantee that the course will be replete with interest and usefulness. SMALLPOX. Smallpox has been reported from so many parts of the State that it can be considered epidemic, and health officers are warned to be on their guard against it. There is so much activity in railroad building all over the State, and as several of the camps have become infected, it behooves the health officers of the localities where such camps are |