THE FARMERS' CABINET, 



DEVOTED TO AGRICULTURE, HORTICULTURE AND RURAL ECONOMY. 



Vol. I. 



Philadelpliia, March 15, 1§37. 



No. 17 



Tlie Observer. — No. 3. 



When my former essays were written, I 

 did not expect again, to obtrude my horns in- 

 to the Cabinet ; — but further investigations, 

 have led to results which I shall briefly no- 

 tice. Not possessing either the leisure, or 

 opportunity to make the needful examinations 

 at the time, I drew the anatomical account 

 of the horns, from authorities on which I 

 thought I could rely. I supposed it to be i 

 sufficiently correct for my purpose, although 

 I doubted tlie accuracy of some of the minute 

 ietails, I find these to be more erroneous 

 :han I had expected. 



It is stated in my first number, thafdur- 

 ng the developement of the horn, its bone 

 lecomes anchylosed, or united with the os 

 rontis." The bone of the horn is never de- 

 ached from — hut grows out of the os frontis. 

 laving opportunely met with a pair of calf's 

 orns, which had just protruded through the 

 kin, — they were found quite movable on the 

 ontal bone, as has been stated. On making 

 section of the entire horn, the source of er- 

 3r was discovered. In the centre, was a 

 lammary protuberance of bone, completely 

 msolidated with the skull beneath. On 

 lis protuberance, rested a thick layer of soft 

 astic cartilage or gristle, — then the perios- 

 lum, — and finally the shell of horn. The 

 otion was between the shell and pith, and 

 suited from the elasticity of the cartilage, 

 either the pith, nor the skull immediately 

 neath, presented any cavity. A little 

 ® sver, on the forehead, the plates of the skull 

 ;re separated, so as to form a small frontal 

 ill lus. 

 Fig. 66, represents this section — A the pith 

 B the elastic coat — C the periosteum — D 

 shell — EE the skin rising upon the root 



the horn — F the frontal sinus. 

 Vol. 1.— No. 17. 



I have found the cavities of horns, even 

 more irregular than I had anticipated, in my 

 former number — especially, as relates to their 



Fig. C6. 



■Em 



extent. At one time, I have found the hollow 

 extending to the very tip of the core, leaving 

 the bone on one side, as thin as coarse paper. 

 A longitudinal section of the end of the pith 

 is represented in Fig. 67. In other instances, 



Pig. 67. 



the cavity has been very small, and did not 

 extend more than two or three inches into 

 the root of the horn. In these cases, the mid- 

 dle and upper portions of the shell, are occu- 

 pied by a large mass of bone. A section of 

 such a horn is shown in Fig, 68. 



It will mostly happen that horns of the 

 latter description will be bored above the 

 cavity. In six horns which had been bored, 

 I found that in two, the instrument had only 

 penetrated through the shell— in two, it had 

 passed several inches above the hollow ;— and 

 in two, had penetrated it. Admitting the 

 operation to have been necessary, in all the 



