8.   Composite-Test Sample. At the time the test of the milk is made, a sample, comprising as many cubic centimeters of milk as the number of pounds in the milking, is placed in a pint fruit jar, containing a small quantity of preservative, for the composite-test sample to be sent to the Station when the test is completed. A 25 c.c. glass pipette for taking this sample is furnished in each outfit.

Each and every milking must contribute to the composite-test sample in proportion to the amount of milk yielded each time, which will be accomplished by strictly following the directions. The Station representative will be responsible for the proper care of the composite sample, and will send it to the Station by express immediately on the completion of the test.

9.   In selecting official test periods of not less than seven consecutive days for report, the test periods so selected may begin with any milking made at the regular hour for that milking; provided the previous milking, as well as the last milking of the test period selected, are also made at the regular hour. When any official test period forms a portion of any semi-official test, a detailed report of the whole official test period must be made; but the Superintendent of Advanced Registry will only report as A. R. 0. record, or records, such consecutive portion, or portions, of the test as the owner may select.

The Station representative shall fill out all blanks furnished by his Station, or by the Holstein-Friesian Association, and shall make oath before a notary public to such reports as, in conjunction with the authorities of the Holstein-Friesian Association, are required by the Station.

10. The Station representative is not at liberty to decide as to which stipulations contained in the rules are essential and which are not, but is required to observe directions in all details. He shall report to the officer of his Station in charge of tests of dairy cows any irregularity or unusual occurrence in connection with the test which he may observe, and shall, in general, take all possible means to conduct a fair and equitable test of the cows placed under his supervision.

Schedule of charges for supervising records of cows

As an illustration of the costs involved in the testing of cows, a statement is here given of the charges made by one of the colleges of agriculture for such work. Something like one-half of all Hol-stein cows in the United States with advanced registry are tested according to this schedule. Of course the schedule applies to any breed.

A uniform flat rate is charged for supervising records of cows. This flat rate covers the entire cost of supervision to the breeders so far as the college of agriculture is concerned, and includes per diem of supervisor's traveling and hotel expenses, expressage, postage, etc. The owners and breeders supply the sulfuric acid, pay notary fees, arrange for conveyance to and from the nearest railway station, and provide for living expenses at the farm during the test. No supervisor will be allowed to remain more than 30 days at one place. The schedule is as follows: —

1 day record....................    $6.00

21/2 day record....................    $9.00

7 or more days...................    $2.25 per day

For each 7-day or 30-day record reported.........    $1.00

A single supervisor will not be required to test more than 6 cows milked 4 times a day; 8 cows milked 3 times a day; or 15 cows milked twice a day.

Supervisors will be sent to suit the convenience of owners as far as possible, but we cannot promise a supervisor for any definite date. Between October and June, application for supervisors should be made at least three weeks in advance, in order to be reasonably sure of a supervisor at the time desired. An application for a supervisor may be canceled or a date deferred at any time up to three days before the man is due. Supervisors will be sent to waiting owners in order of date of application.