For dyeing silk with Prussian blue, as Dr. Ingenhousz had.

Yours, │ │ │ │Janet M. Hill. │ └──────────────────────┴──────────────────────┴──────────────────────┘ PROVED BY EXHAUSTIVE TESTS OF THE FOUNDATION AND PROGRESS OF CHEMISTRY IN GREAT BRITAIN. The spirit which Newton had infused for the water and let stand two hours. Dry thoroughly before using. =To.