KxpL'riiiu'Utal < >itL'mti()iis oii tin- I'ituiiary 



87 



stiites that after doini^ a largt- number of operations " it is not unusual for 

 the operation to be completed within an hour at'ur the be<;innin<; of 

 anjesthesia." On only one occasion — the first — did I exceed tliat time. 

 The average time occupied V)y the actual operations was 'V.) minutes. 



The final determinatic^n of the character of the operation in the 

 extirpation experiments was nK-ule in every ease by a cnrt-ful comparison 



Fig. 10. — An<,'led fiiicei>s for liolding wool dahs witli which tho ceiehro-sjniial tluid and 



l)lood are mojijicd. (I'hotof,'raj)li x 5.) 



Fig. 11. — Aural forcep-s for removing portions of the pituitary. (Pliotograpli x J.) 



of the tissue removed at operation with the post-mortem histolotjical 

 findinofs. 



As it seems hardly worth while reduplicating the illustrations by 

 reproducing more or less identical results, only those photographs and 

 photomicrographs have been reproduced which illustrate most clearly 

 the findings that may be considered typical and important. 



Post-operative Symptoms. — In no case were there severe complica- 

 tions, such as serious sepsis or paralyses, as the result of the operative 

 procedures; but sometimes there was an escape of cerebro-spinal fluid 

 from the wound. Generally, the animals drank milk within a few hours 



