To be prepared with the white interior of oystershells and pure flowers of Sulphur. Impure Calcium sulphide, CaS. Preparation for use , Triturations. Authorities. 1 , Hahnemann, Chron. Krank-n.; 2 , F. H-n, ibid.; 3 , Stapf, ibid.; 4 , Hinze, Hufel, Journ., 1815 (xli, C., 77-79), effects of large doses given for hooping-cough; 5 , Fischer, Prag. Monats., 1865, p. 22, effects of one dose of 3d dil. on several persons; 6 , Robinson, Brit. Journ. of Hom., 24, 514, one dose of 6th on a young man (one symptom); 7 , same, effects of 30th, night and morning, on a young man (three symptoms); 8 , same, effects of 1000th, in water, four times a day, on a young female (one symptom); 9 , same, 200th in water, spoonful in morning, on a young female (one symptom); 10 , All. Hom. Zeit., 19, p. 234, a man, aged 73, took 8 grains, triturated with Sugar of milk, in two weeks; 11 , Le Franque, Annal. de la Méd. et Phys., 1825 (Orfila), a man took by mistake 64 grammes of crude.