6 Wyoming Experiment Station. 



In branding the iron was placed upon a pad of wool satu- 

 rated with the fluid and then applied to the sheep. Common 

 paint, Kemp's, Perfect, Special, and Harmless were very easy 

 to apply, being just thick enough to avoid dripping. The 

 fluid from the Oregon Wood Distilling Company was rather 

 thin and hence hard to apply so as to give a perfect brand. 

 The pigment and base in the Special had precipitated, and this 

 necessitated considerable stirring before the liquid was ready 

 for use. 



The sheep were allowed range conditions as nearly as 

 possible and notes were taken at regular intervals. As is usu- 

 ally the case, the brands faded rapidly on the coarse and long- 

 wools, remaining visible as a brand only five months. On 

 the medium wooled sheep the brands were more durable, while 

 they reached their maximum on the fine wools. However, 

 none of the prepared paints remained for a full year. Some 

 were indistinct in five months while some persisted during 

 eight months. The Common paint, however, remained for 

 the full year on the downs and fine wools. Similar tests show 

 that lamp black, a little white lead and linseed oil make as 

 durable a paint as the one tested here and known as Common. 



PLATE III. 



Same sheep and view as in Plate II about two months later. Brand 

 has been on nearly six months and is fading rapidly. 



