Niccolum Sulphuricum. Sulphate of Nickel. NiSO4. Trituration.   Clinical.-Headache. Neuralgia, periodic.   Characteristics.-J. Y. Simpson cured with Ni. s. periodical headaches of very severe character. Hale used with success the

NICCOLUM SULPHURICUM Sulphate of Nickel Useful in climacteric disturbances. Periodic neuralgias of malarial origin. Urine and saliva increased. Coppery taste. Weak, asthenopic literally persons with weak digestion and constipation, are