DIPS. 75 



water; dissolve in it 8ft) soda, add 4ft3 freshh- burned or 

 slaked lime. Dilute 8tt) soft soap with hot tobacco broth, 

 add it to the rest, then add 4tb crude carbolic acid. Mix. 

 This quantity is sufficient for 100 sheep. 



Roloff's Dip— For 100 sheep. Take 20tto of tobacco, 

 steep it with 66 gallons of water for half an hour; heat it to 

 95° Fahr. and add 2i/2lb each of pure carbolic acid and 

 potash. 



Mix an infusion of 15ftj tobacco with 2y2lb carbolic 

 acid and ISi/olb wood tar, pour it into 66 gallons of water 

 at 125° Fahr., in which 3 lb soda have been dissolved. Use 

 it at a temperature of 80° or 90° Fahr., and repeat in six or 

 seven days. 



Clement's Dip. — Arsenious acid 1 part; sulphate of zinc, 5 

 parts; water, 100 parts. The water is put over the fire, the 

 chemicals added, and it is allowed to boil for S or 10 min- 

 utes. When cool enough for use the sheep is entirely sub- 

 merged in the liquid with the exception of the head. The labor- 

 ers should grease their arms with linseed oil, as v^ell as the 

 udder of ewes, to prevent the action of the astringent on the 

 skin and on the secretion of milk. 



Mathew's Dip. — 1 part arsenious acid, 10 parts alum, 100 

 parts water. 



Scheurle and Kehm's Dip. 1 pt. arsenic, 12 parts alum, 

 200 parts of water. 



Kerosene-Emulsion as a Sheep Dip. — Prof. Gillette has 

 made a number of experiments with an 8 per cent kerosene- 

 emulsion, and says that a dip of this strength could be 

 safely used. Such an emulsion is much cheaper than any 

 of the commercial dips, and it is a matter of great importance 

 to try this remed3" very fully. 



Patent dips are objectionable because their formulas are 

 not given, and consequently may be valueless or not strong 

 enough, and they are usually more costly than they are act- 

 ually worth." 



3. Sucking- Itch-mites. {Symhiofes). {Chorloptes). 

 Two species of Symhlotes are found in Minnesota, the 

 Common Symbiotes {Symhiotes communis Verheyen), and the 

 Auricular Symbiotes {Symhiotes auricxdaruin Lucas). 



