56 



Arkansas Experiment Station. 



The fifth bulletin of the Arkansas Experiment Station, issued in August, 

 1888, gives the results of a dehorning experiment mace under the directions of 

 Mr. Albert Menke. It states : 



The subject of dehorning having become one of great interest, we undertook 

 a series of careful experiments with a view to clearly observing the pathological 

 changes produced in the animals, and also to notice what effect the operation had 

 upon the composition of the milk. From the result it is obvious that the milk 



Plate I. Section of Horns Amputated at Base. 

 Fig. n ».„ 



Fig 1. — Cow three years old. 

 Fig 2. — Cow four years old. 



A. — Epidermis. 



B. — Coriuin. 



C. — Bony core, of horn. 



D. — Cavity of horn oore. 



Plate TI. Section and side view of Horns of Calf four Months old. 



i 



A. — Cartilaginous horn core partly ossified. 

 I'.. — Its p riosteal covering. 

 C. — Corium. 

 D. — Epidermis. 

 E. — Artery, 



did not materially change in the proportion of fats to solids not fat. Thephysio- 

 ogical results were observed by Dr. Dinwiddie, while the chemical analyses were 

 made by Messrs. Twombly and Collingwood. 



Amputation of the horns was performed at this station on seven subjects, in 



