Academy of Sciences, New York. 117 Answers to correspondents. 123 Arts, lost, in New York. 113 Augers and drills (16). 123 Bain, Alexander. 121 Blue glass deception, the. 113 Blue glass science. 121 Boilers for small engines (2,14). 123 Business and personal. 123 Caffeone. 114 Chromate of lime, acid (18). 123 Circle problem, the three (8). 123 Clock collector, a. 119 Coal, burning small (19). 123 Cremation temple, proposed*. 119 Dark days (11). 123 Dates and the date palm*. 111 Diseases, infections. 121 Dyeing process, a cold (9). 123 Engines for boats (12). 123 Floors, filling for hardwood (6). 123 Friction at rest (15). 123 Frost plant of Russia, the*. 116 Glass making, toughened. 121 Greenhouses, tar paint in (3). 123 Harness cockeye, improved*. 118 Heating ranges (17). 123 Heating rooms (7). 123 Hemi-plunger, the.* 115 Hens, Leghorn. 114 Ink, purple marking. 117 Iron trade in England. 117 Laboratory manipulations. 117 Lathe chuck.* 118 Lathe, screw-cutting.* 118 Lead, sea water and. 119 Moneyed men. 122 Mortar, black (10). 123 New books and publications. 122 Ornaments in winter, natural. 118 Papin's steam engine.* 120 Patent decision, a. 115 Patent matters in Washington. 116 Patent office annual report. 117 Patents, American and foreign. 122 Patents, official list of. 124 Planing mill machinery. 115 Posterity, for--a suggestion. 112 Railroad, the Wetli mountain.* 114 Rock sections for microscopy. 117 Roofs, leaky slate (1). 123 Rose bushes, soot for. 119 Salicylic acid for the feet. 115 Sawdust in rough casting. 114 Seed-distributing panthers. 111 Self-reliance and success. 121 Snow a fertilizer. 119 Something to do. 121 Spectroscope prisms (11). 123 Steam engine, Papin's. 120 Steam engine, the Brown. 120 Suicide statistics. 116 Telegraph, the speaking. 120 Trolling hook, improved*. 114 Watch, position of a (13). 123 Waterproofing, suint for. 114 White color in animals.