at one end, and sealed at the other.The latter part being heated the resulting sublimate is driven into the capillary portion, which with a bulb-shaped part of the wide tube is theu cut off before the blowpipe.This latter part is opened, and some iodine being introduced, is again closed.The iodine vapor penetrates the cap- illary end, and changes the mercurial sublimate to iodide.According to Lehmann the sensitiveness of the test is heightened if this reaction takes place in a slow current of air while the gold electrode is cau- tiously heated, and the mercury volatilized in presence of iodine.In this way 0.1 milligramme of mercuric chloride may be detected in one hundred cubic centimetres of urine.Mayer's method, by which the mercury is distilled in presence of steam, is even more sensitive.Urine or the finely divided organ diluted with water is mixed with slaked lime and solution of potassium hydrate in a flask having a capacity of about three times the vol- ume introduced.A U tube filled with glass wool Case I. G. R. C, aged twenty-one, admitted to hospital February 5, 1883, fell out of a window and fractured his femur at the middle third, shortening one and one fourth inches.Put up iu Buck's extension with a weight of twelve pounds.February 24th.Passive motion of knee.
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G. W. ALLEN (1883) studied this question.