periods, followed by 10 days without either salt or bromid. These doses apply to adults and generally also to young peo¬ ple from 16 to 18. The various details of their experiences are tabulated, showing that this dosage was worked out on the basis of wide experience with larger and smaller doses, the former proving unnecessary and the latter inadequate. The Brain Cortex and Blood Pressure.-W. Lewandowsky and E. Weber (Med. Klinik, ii, No. 15) find that there is in the cortex of dogs and cats a

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... limitable region, irritation of which causes rise of blood pressure and that it is not coexten¬ sive with the motor zone, but in cats is situated more an¬ teriorly. The blood pressure induced by its irritation affects