[arnason- VINCENT] THYROID AND PARATHYROID 122 



is clear that in dogs and cats where the parathyroids are in close 

 proximity to the thyroids there is great danger that a shred of thyroid 

 tissue might be left behind at the operation for thyroidectomy, and 

 might subsequently be mistaken for a transformed parathyroid. 

 This suspicion is at any rate strong enough to suggest that further 

 careful experiments upon animals other than rabbits ought to be 

 carried out. 



