...the Smithsonian Institution Building at Washington. The results are given in the following table.! The specimens operated upon, it should be stated,...four weeks which the experiment lasted. The injurious enacts of artificial heat, such as is produced by a burning building, are, of course, greater in proportion...

...0.34 14.36 24.93 0.70 1. 7 3 l.jS 0.62 2.16 5.60 I8.6o 1.58 1.72 5.05 0.35 0.28 0.35 16.46 1.07 0.91 The specimens operated upon, it should be stated,...throughout the four weeks which the experiment lasted. Although as above noted this process is practically abandoned, the series of tests given was productive...

...0-34 14.30 24-93 0.70 I.?S 1.53 0.62 2.16 5.60 18.60 1. 55 1.72 5.05 0.35 0.23 0.35 16.46 1.07 0.91 The specimens operated upon, it should be stated,...immersed for half an hour in the boiling solution of sulphate-of soda, and then hung up to dry, this performance being repeated daily throughout the four...

...brick 2.211 16.46 Hard brick, 2.294 1.07 Marble, coarse dolomite, Mount Pleasant, New York 2.860 0.91 The specimens operated upon, it should be stated,...throughout the four weeks which the experiment lasted. Although as above noted this process is practically abandoned, the series of tests given was productive...

...Hard brick , 2.294 1.07 Marble, coarse dolomite, Mount Pleasant, New York 2.860 0.91 The speciinens operated upon, it should be stated, were cut in the...throughout the four weeks which the experiment lasted. Although as above noted this process is practically abandoned, the series of tests given was productive...

...brick 2.311 16.46 Hard brick , 2.294 1.07 Marble, coarse dolomite, Mount Pleasant, New York 2.860 0.91 The specimens operated upon, it should be stated, were cut in the form of inch cubes. Each \vas immersed for half an hour in the boiling solution of sulphate of soda, and then hung up to dry,...

...brick 2.211 16.46 Hard brick , 2.294 1.07 Marble, coarse dolomite, Mount Pleasant, New York 2.860 0.91 The specimens operated upon, it should be stated, were cut in the form of inch cubes. Each v.*as immersed for half an hour in the boiling solution of sulphate of soda, and then hung up to dry,...

...brick 2.211 16.46 Hard brick 2.294 1.07 Marble, coarse dolomite, Mount Pleasant, New York 2.860 0.91 The specimens operated upon, it should be stated, were cut in the form of inch cubes. Each iras immersed for half an hour in the boiling solution of sulphate of soda, and then hung up to dry,...

...brick 2.211 16.46 Hard brick , 2.294 1.07 Marble, coarse dolomite, Mount Pleasant, New York 2.860 0.91 The specimens operated upon, it should be stated, were cut in the form of inch cubes. Each ivas immersed for half an hour in the boiling solution of sulphate of soda, and then hung up to dry,...

...tests of Maryland granites. Merrill states that the inch cubes were immersed for half an hour in a boiling solution of sulphate of soda and then hung...performance being repeated daily throughout the four weeks of the experiment. The result is assumed to be analogous to that of freezing. Strength and other physical...