DISEASES OF T HE MAMM.-E A^D TE-ATS. 339 



ately sewing up the wound and milking for some time with a 

 lube. The obhteration of the duct by contraction of its walls 

 or by a membranous growth, is to be met by a bistuori cache (a 

 knife one line in breath hidden in a groove of a sharp-pointed 



Fig. 41. — Bistuori Cache. 



handle, but which can be pressed out of its case so as to cut to 

 any extent desired), and a silver or gutta-percha teat tube to be 

 kept tied in the newly-made channel until it heals. It is well 

 ■ to leave these surgical operations until the milk is dried up. 

 A simple instrument is in use by dairymen, consisting of a steel 

 probe flattened out two lines at one extremity and with finely 

 sharpened point. 



SORE TEATS. SCABS. WARTS. 



Sores, chaps, and scabs, on the teats are to be treated by 

 soothing appUcations. One ounce each of spermaceti and 

 almond-oil melted together will often suffice. Or 5 grains each 

 of balsam of Tolu or Peru may be added. Or a solution of 

 5 grains of sugar of lead or chloral-hydrate and \ oz. each of 

 glycerine and water. But no plan will succeed without gentle 

 milking, with dry teats, especially in winter, or in bad cases 

 without the use of a milking tube. \Varts are to be removed 

 by the knife, scissors, and caustic. 



Simple and Malignant Tumours of the mammary glands are 

 met with in all species of domestic quadrupeds, and demand 

 removal with the knife. 



