In a previous paper1 the writers found that the production of experimental arthritis was either prevented or was much milder in degree in rabbits treated with the continuous incandescent electric light than in those not so treated. Three of the five series however were in a cage the temperature of which was 15 to 20 C. above that of the room, giving a combined effect of heat and light. In one series the heat was eliminated to a great extent, but the series was too small to draw any definite conclusions. A comparison of the groups shows that of twelve rabbits treated with the light and heat there was an average of one lesion per animal, while the twelve controls had an average of 2.7 lesions per animal. In the series treated with light alone, the temperature being from 4 to 6 C. above the surrounding room temperature, six
SIMMONDS WE, MOORE JJ. THE EFFECT OF HEAT AND CONTINUOUS INCANDESCENT ELECTRIC LIGHT IN EXPERIMENTAL ARTHRITIS. Arch Intern Med (Chic). 1917;XIX(1):153–155. doi:10.1001/archinte.1917.00080200160008
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