It is said this claim has been confirmed by photo-metric test. This apparatus, we are informed, received thehighest and only medal, a diploma and honorable mention atthe Exhibition of the American Institute, last fall, after acompetitive trial of different apparatuses. Particulars relating to this… … liable illuminating gas, have taxed the brains of chemistsgreatly, and since the discovery of the petroleum wells in Sensitive Tests for Hyposulphite of Soda. According t o the Journal fur Chemie, the most delicate testfor hyposulphite of soda is permanganate of potash. Its ap-plication is simple…
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