The mean temperature of the air at Greenwich during the registration year was 49.4° F., the average of 35 years being 49.3°. The averages of the four quarters were 41.6°, 53.5°, 60.6°, and 41.8°. The hottest week was that which ended on the 11th of July, mean temperature 66.8°; and the coldest week was that ended on the 2nd of January, 1875, mean temperature 28.8°. The highest reading of the thermometer was on the 9th of July, 92.0°, and the lowest on the first day of the current year 18.2°. The dryness of the atmosphere (_i.e._, the difference between the dew point temperature and air temperature) was 5.6 (average in 30 years 5.5.) The rainfall was 24.1 inches. VACCINATION. I am indebted to Mr. Shattock, the energetic Vaccination Officer, for the interesting particulars contained in Table IX, (Appendix), on the important subject of Vaccination. From it we learn that during the year 4,357 births were returned to him by the sub-district registrars, and that the successful vaccinations numbered 3,588. Twenty-three infants were certified as insusceptible of successful vaccination; in 74 cases the postponement of vaccination was sanctioned by medical certificate on account of the state of health, &c.; 27 children were removed to other districts, the vaccination officer of each district being duly apprized of such removal; 9 cases were still under proceedings (at the date of the report), by summons or otherwise; while 464 children died unvaccinated. The cases unaccounted for—either through the removal of the children to places unknown, or which cannot be reached, and cases not having been found—amounted in all to only 172, or a fraction below 4 per cent. of the total births—a result that must be considered very satisfactory, highly creditable to the vaccination officer, and, I would add, to the Board of Guardians; while I can hardly believe it has been surpassed in any other district of the Metropolis. The Guardians have lately (August, 1875) prosecuted successfully a non-qualified practitioner for signing Vaccination Certificates. A penalty of Ten pounds was inflicted; the offence with which the defendant was charged being that of “falsely pretending to be registered” under the Medical Act, none but registered practitioners being qualified to sign Vaccination Certificates. SANITARY WORK.