 | 1847 - 490 páginas
...portion of the cotton threads have been removed ; to make this sample useful, it must be washed, dried, and the immersion in the acid repeated. When the tissue...white and opake. The sulphuric acid acts upon the flax thread of pure linen, and the sample is even somewhat transparent after drying as far as the acid acted... | |
 | 1847 - 492 páginas
...portion of the cotton threads have been removed ; to make this sample useful, it must be washed, dried, and the immersion in the acid repeated. When the tissue...white and opake. The sulphuric acid acts upon the flax thread of pure linen, and the sample is even Somewhat transparent after drying as far as the acid acted... | |
 | William Francis, Henry Croft - 1847 - 512 páginas
...portion of the cotton threads have been removed ; to make this sample useful, it must be washed, dried, and the immersion in the acid repeated. When the tissue...transparent, while the linen threads still continue white and opuke. The sulphuric acid acts upon the flax threads of pure linen, and the sample is even somewhat... | |
 | 1847 - 490 páginas
...portion of the cotton threads have been removed ; to make this sample useful, it must be washed, dried, and the immersion in the acid repeated. When the tissue...white and opake. The sulphuric acid acts upon the flax thread of pure linen, and the sample is even somewhat transparent after drying as far as the acid acted... | |
 | William Newton - 1847 - 526 páginas
...portion of the cotton threads have been removed : to make this sample useful, it must be washed, dried, and the immersion in the acid repeated. When the tissue,...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 páginas
...portion of the cotton threads have been removed; to make this sample useful, it must be washed, dried, and the immersion in the acid repeated. When the tissue...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 - 906 páginas
...portion of the cotton threads have been removed : to make this sample useful it must be washed, dried, and the immersion in the acid repeated. When the tissue,...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 - 654 páginas
...portion of the cotton threads have been removed ; to make this sample useful, it must be washed, dried, and the immersion in the acid repeated. When the tissue...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 páginas
...portion of the cotton threads have bcen removed : to make this sample useful, it must be washed, dried, and the immersion in the acid repeated. When the tissue, under examination, consists of jiirrb linen, the portion immersed in the acid likewise becomes transparent, but more slowly, and in... | |
 | 1847 - 448 páginas
...portion of the cotton threads have been removed : to make this sample useful it must be Avashed, dried, and the immersion in the acid repeated. When the tissue,...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... | |
| |
... estimated. If the sample has been allowed to remain too long in sulphuric acid, the linen threads likewise become brittle, or even eaten away ; if it were not left a sufficient time in it, only a portion of the cotton threads have been removed ; to... 