16 7 <u>Swelling of the lens in acid and in alkali.<u/> Lenses were removed in their capsules from dogs just dead under anaesthetic, and of each pair one was immersed in Ringer's solution (pH 8.2) and the other in 0.09 Molar acid potassium phosphate (pH 4.2). During the first hour and especially during the early part of the first hour the lenses in acid solution gained weight much more rapidly than those in Ringer. Afterwards, during the first few days they gained at a much slower rate and finally reached a maximum weight which remained practically constant while putrefactive changes set in. The lenses in Ringer's solution remained steady to the end of the first day or lost again slightly, but gained more rapidly and reached a higher maximum than those in acid during the second to sixth or seventh days, after which putrefactive changes set in or the lenses burst their capsules.
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- Clare Harris
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Some observations on the crystalline lens , From The Royal Society, MS/165
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