NORMALS OF TEMPERATURES FOR TWENTY YEARS.

The following table is compiled from observations of Prof. T. S. Parvin, from 1861 to 1871, and from those of Prof. G. Hinrichs, of the Iowa Weather Service, from 1871 to 1880, and are the result of nearly thirty thousand observations, which were made at Iowa City. The values given, are for each decade of each month.

NORMAL MEAN TEMPERATURE FOR EACH DAY OF THE

YEAR.

The following table gives the normal mean temperature for every odd day of the year, determined by Prof. Hinrichs from twenty years observation, made at Iowa City. The values for the mean days are obtainable by interpolation at sight. Thus: January 16, has a normal mean temperature of 19.1 degrees:

[TABLE X.]

DATE.

1...

3..

5..

7....

9....

Jan. Feb. Mar. April May. June. July. Aug. Sept. Oct. Nov. Dec.

19.2 21.2 28.7 40.7 54.0 65.3 73.0 72.8 67.8 56.8 42.2 27.4
18.9 21.6 29.1 42.0 54.8 65.9 73.3 72.7 67.1 55.9 41.3 26.8
18.7 22.0 29.6 43.2 55.5
66.3 73.6 72.6 66.4 55.0 40.4 26.3
18.6 22.5 30.1 44.3 56.3 66.8 73.9 72.5 65.7 54.0 39.6 25.7
18.7 22.9 30.5 45.4 57.3 67.3 74.0 72.4 65.0 53.1 38.7 25.0

11.. 13....

15..

17...

19...

18.8 23.3 31.0 46.3 58.2 67.8 74.1 72.2 64.3 52.1 37.7 24.4
18.9 23.8 31.5 47.1 59.1 68.3 74.1 72.0
63.7 51.2 36.7 23.8
19.0 24.4 32.2 47.9 59.9 68.8 74.1 71.8 62.9 50.2 35.7 23.2
19.2 24.9 33.0
48.6 60.7
69.4 74.0 71.5 62.2 49.2 34.7 22.5
19.5 25.4 33.9 49.3 61.4 69.9 73.9 71.1 61.5 48.2 33.5

21.9

FINANCIAL STATEMENT.

The following is a statement of expenditures of the State Board of Health, from the thirtieth day of September, 1881, to thirtieth day of June, 1883. Showing for what purposes, to whom paid, and the number of the vouchers on which the same was paid. The vouchers were audited by the State Board and the President, in accordance with sections ten and twelve, chapter 151, Laws of the Eighteenth General Assembly, and duplicates of all vouchers, on which warrants have been drawn on the State Treasurer, have been filed with the State Auditor, properly certified, as expenses of the State Board of Health.