(3.) At the end of this time dip every sheep (and every goat also, if there are any on the farm).
(4.) Ten days later dip the entire flock a second time.
(5.) After the second dipping, place the flock on the portion of the farm from which they have been excluded during the previous four or five weeks.
(6.) Use the dip at a temperature of 100° to 110° Fahr.
(7.) Keep each sheep in the dip for two minutes by the watch—do not guess at the time—and duck its head at least once.
(8.) Be careful in dipping rams, as they are more likely to be overcome in the dip than are the ewes.
(9.) Injury may, however, result to pregnant ewes, which must on this account be carefully handled. Some farmers arrange a stage, with sides, to hold the pregnant ewes, which is lowered carefully into the vat, and raised after the proper time.
(10.) In case a patent or proprietary dip, especially an arsenical dip, is used, the directions given on the package should be carried out to the letter.
CHORIOPTIC MANGE, SYMBIOTIC MANGE, FOOT SCAB.
This disease was studied in Germany by Zürn in 1874, and by Schleg in 1877. It has not yet been seen in France.