 | 1847 - 490 pagina’s
...again with water. After it has been freed from the greater portion of the moisture by gentle pressure between blotting-paper, it is dried. If it contained...transparent, while the linen threads still continue white and opake. The sulphuric acid acts upon the flax thread of pure linen, and the sample is even somewhat... | |
 | William Newton - 1847 - 526 pagina’s
...again with water. After it has been freed from the greater portion of the moisture, by gentle pressure between blotting-paper, it is dried. If it contained...transparent, while the linen threads still continue white and opaque. The sulphuric acid acts upon the flax threads of pure linen, and the sample is even somewhat... | |
 | 1847 - 490 pagina’s
...again with water. After it has been freed from the greater portion of the moisture by gentle pressure between blotting-paper, it is dried. If it contained...transparent, while the linen threads still continue white and opake. The sulphuric acid acts upon the flax thread of pure linen, and the sample is even somewhat... | |
 | 1847 - 530 pagina’s
...again with water. After it has been freed from the greater portion of the moisture by gentle pressure between blotting-paper, it is dried. If it contained...transparent, while the linen threads still continue white and opake. The sulphuric acid acts upon the flax threads of pure linen, and the sample is even somewhat... | |
 | 1847 - 906 pagina’s
...again with water. After it has been freed from the greater portion of the moisture, by gentle pressure between blotting-paper, it is dried. If it contained...transparent, while the linen threads still continue white and opaque. The sulphuric acid acts upon the flax threads of pure linen, and the sample is even somewhat... | |
 | 1847 - 634 pagina’s
...readily estimated. If the sample has been allowed to remain too long in sulphuric acid, the linen threadi likewise become brittle, or even eaten away ; if it...transparent, while the linen threads still continue white and opaque. The sulphuric acid acts upon the flax threads of pure linen, and the sample U even somewhat... | |
 | 1847 - 654 pagina’s
...very readily estimated. If the sample has been allowed to remain too long in sulphuric acid, the Unen threads likewise become brittle, or even eaten away...a uniform manner ; whereas, in the mixed textures, tbe cotton threads are already perfectly transparent, while the linen threads still continue white... | |
 | William Newton, Charles Frederick Partington - 1847 - 524 pagina’s
...away ; if it were not left a sufficient time in it, only a portion of the cotton threads have bcen removed : to make this sample useful, it must be washed,...repeated. When the tissue, under examination, consists of jiirrb linen, the portion immersed in the acid likewise becomes transparent, but more slowly, and in... | |
 | Charles W. Vincent, James Mason - 1848 - 400 pagina’s
...portion of the cotton threads have been removed ; to make this sample useful, it must be washed, dricd, and the immersion in the acid repeated. When the tissue...transparent, while the linen threads still continue white and opake. The sulphuric acid acts upon the flax threads of pure linen, and the sample is even somewhat... | |
 | 1847 - 1194 pagina’s
...again with water. After it has been freed from the greater portion of the moisture by gentle pressure between blotting-paper, it is dried. If it contained...transparent, while the linen threads still continue white and opake. The sulphuric acid acts upon the flax thread of pure linen, «nd the sample is even somewhat... | |
| |
If it contained cotton, the cotton threads are found to be wanting in that portion which had been immersed in the acid ; and by counting the threads of the two portions of the sample, its quantity may be very readily estimated. If the sample has been... 