ecrAqAC oC I DAL JOURNAL. whisk proves that a certain richnes in urates is necessary for the formation of a sediment. Lactic, oxalic, phosphoric, nitric, and hydrochlorio acids, act in the same way as aoetic acid; they all produce, under csrtain circumstances, the separation of free uio aid. When urine is rendered turbid by a large amount of aids, small quantities produce the sanme effect; but the converse does not take place. Zimmermrann has endeavoured to shew that, although a sediment is

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... ed more rapidly after the addition of oxalic than of acetic acid, yet no crstals of oxalate of lime are formed, or ontly wlhen tle fluid is also boiled. un(ler his care of lypeetroplhy of tlhe lheart anid spleen, with induration and suppuiration of rany of the lymphatic glands, in wlhielh lhe observedl a remarkable amnounit of sedimuenit ill colourless urine. (Pryger Jiertealjwrschrift, vol. ii.) FAT YN TIIE URINE. METTENIEI3iEr. (Ar-chiv. fuir. wrissensch. le;lkusnde. vol. i, sect. 3) hias observed fltid fat in the uirine in two cases wbere the patients liuod for some tim, liecn taiking oleaginouLs medicines. Very conspicuouis large drops off floated on the urine, anti Mlettenheiner renioved spot-of fat oni paper. The first case wa-s that of a man suff'erinm fromii cancer of the lung, with gr-eat dyspnaea, who had been taking twice daily for several (lays two tablesTpoonfuls of cod liver oil, witlh tinieture of iodine.