Mean daily temperature...
Amount of rain and melted snow in inches...
Depth of snow in inches...
Barometer reduced to 32° Fah...
Pressure of vapor in inches...
Percentage of Humidity....

100

BAROMETER.

Barometer reduced to Freezing Point.-In this space are placed the figures which indicate the observations on the barometer reduced to the temp. of 32° Fahrenheit, by means of a table; and also the mean or average of the three reduced daily observations.

FORCE OF PRESSURE OF VAPOR.

In this space are entered the numbers which indicate the inches of mercury of a barometer which the force of vapor of the atmosphere alone will sustain. The whole pressure of the atmosphere, as given under the head of "Barometer," is due, conjointly, to the weight of the air and the moisture which it contains. The figures under this table indicate the separate pressure of the moisture, and are obtained from the records of the wet and dry bulb thermometers by means of a table based on experiment.

RELATIVE HUMIDITY OR PERCENTAGE OF SATURATION.

The quantity of water in a state of vapor which a given space can contain, depends on the temperature. When a given space has as much water as it can hold at a given temperature, it is said to be saturated with vapor. If the temperature be lowered, a portion of the vapor will be condensed into water, but the space will still be saturated. If the temperature be raised and no more vapor be admitted, the space will only be partially saturated. The numbers under the head of "Relative humidity" therefore denote the percentage of saturation; full saturation being indicated by 100, and half saturation by 50. These figures are deduced from the corresponding forces of vapor by means of a table in the Smithsonian Collection.

RESULTS FOR 1878.

44°.54 31.745

652

28.874 .285

82.

CONTENTS.

STATE AGRICULTURAL COLLEGE,

Governor Bagley's Message,

Legislation,

•

Record of the year 1873,

Students-number in attendance,

Commencement Exercises, etc.,

General Catalogue,

Donations to the College in 1872,

Donations to the College in 1873,

College Accounts,

Reports of Departments,

Transactions in the Farm Department,

Report of the Librarian,

THE FRUIT REGIONS OF MICHIGAN, by HENRY S. CLUBB,

The Pioneer Peach Region,

St. Joseph Village and River,

Benton Harbor and the Paw Paw River,

Extent of the St. Joseph Fruit Region,

Historical Sketch,

The Yellows in Peaches,

Manufactures connected with Fruit Growing,

Fruit Canning,

Nursery of Fruit and Ornamental Trees,

General Estimate of the St. Joseph Fruit Region,

Character of the Lake Shore,

Village of South Haven,

Mildew in Grapes,

The Farms,

Park and Horticultural Hall,

Specimen Farms,

Williams' Fruit-drying Process,

Bidwell Drying-Machine,

Cooperative Nursery,

Fruit Baskets and Crates,

Small Fruits,

Estimated Number of Farms,

General Advantages of the Region,

Kalamazoo River and Lake,

Saugatuck,

Douglas and Vicinity,

Cheap Method of Drying Peaches,

The Cut-Worm Obstructed,

Plummerville Settlement,

Fennville Settlement,

Basket Manufacture,

The Swamp Lands,

General Advantages,

Black Lake Harbor and its Surroundings,

The Peach Land,

A World by Itself,

General View of the Traverse Region,

Summer Resort,

Fruit Crop of 1874,

THE ECONOMICAL GEOLOGY of the Region of Cheboygan and Old Mackinac, by

N. H. Winchell, .

EXPERIMENTS IN PIG FEEDING, by M. Miles,

Summary of same,

EXPERIMENTS WITH MANURES, by M. Miles,
SPECIAL MANURES,

"6

66

"C

66

66 FERTILIZERS,

IMPROVEMENTS IN TILE-LAYING, by M. Miles,

Draining Scoops,

Quicksand,

PROCEEDINGS OF STATE AGRICULTURAL SOCIETY

Consolidation of the two Agricultural Societies,

Address of President Griggs,

Meeting of Executive Committee at Eaton Rapids,

General Rules and Regulations,

Races and Premiums,

Meeting of Business Committee at Grand Rapids,

Business Meeting at Detroit,

64

66

"L

66 Pontiac,

66

Grand Rapids,

Executive Committee Meeting at Grand Rapids,

Annual Meeting,

Executive Session of Society,

THE STATE FAIR, 1873,

Treasurer's Report,

General Summary,

REPORTS FROM COUNTY SOCIETIES,

Barry County,

Benzie County,

Genesee County,

Hillsdale County,

Central Fair Association at Hubbardston,

Newaygo County,

Oakland County,

Union Agricultural Society of Springport,

Tuscola County,

Van Buren County,

METEOROLOGICAL OBSERVATIONS FOR 1873,

2