| Description | Slide shows two photographs of goats, entitled 'Thyroidectomy - goat'.
Each picture consists of three goats, and the photographs are labelled 'A' and 'B'.
Title below both images reads: 'Fig.13 - 3 kids (triplets) of a horned nanny goat: all three females. The middle one, which was originally smaller than the one on the right and about the same size as that on the left, was kept as a control, the other two being thyroidectomised on March 19, 1923, when 20 days old. The relative weights remained about the same until April 10, when the first photograph was taken, 22 days after the operation (A): at this date the weight of the control was found for the first time to exceed both of the others. The second photograph (B) shows the same animals on June 20, 3 months after the operation. The larger size of the control animal and the greater development of the horns are striking features (Sutherland Simpson).'
Main title appears on white label at top of slide frame. |