Copy 1, Volume 1

A treatise on the progressive improvement and present state of the manufactures in metal / [Anon].

  • John Holland
Date:
1831-1834
Catalogue details

Licence: Public Domain Mark

Credit: A treatise on the progressive improvement and present state of the manufactures in metal / [Anon]. Source: Wellcome Collection.

    51/364 (page 35)
    = earner, (a) | (8) | (e) | (a) |} () | (f) | &) (h) | (2) | 2 od ape ae eal ce cd ead baneaean GS MS Daas Tr ae Carbonic acid | 32:53] 33°63] 31°86] 3076| 26°35] 33:10) 3224] 35°17 | 3497 Frotoxide of’? | 35.09] 45 84| 42°15| 38°80] 36-47| 47:33] 43°73] 53:03 | 42'35! {Protoxide of ; ; j ! ‘ ns 4 miahsancne § 0:00! 0:20} 000} 0:07] 017} 013] 000] 000 | - - Lime - - | 862] 190] 493] 5:30] 1°97] 200] 210] 333 | 378 Magnesia - 5119} 590) 480} 670) 2°70) 220; 277) 177 4°95 \Silicia - - | 9°56| 7:83! 9°73) 1087] 1990] 663; 970| 1-40 Alumina - | 5°34] 953! 377) 620] 8-03] 430] 513] 063 Feroxide of 2) 1-16] 0:00] 0°80] 0:33] 040] 0:33} 047] og}! Calcareous 12°70 ! or bitumin.¢ 213} 1:86] 2:33] 187} 210] 170} 150} 3-03 ous matter Sulphur - - | 062] 000] 0:00] 016] 0:00] 0-22] 0:02) 0-00) oisture - : ‘ re) ? 3 be aes i ore be oes | fmf) 291) 9-26| 2:34], 141 | 1°95 100'37 | 100°68 | 100-37 |101-06 |100°00 |100'00 100-00 100-00 /100'00 “* (a) From Crossbasket, about seven miles south-east from Glasgow. Colour light-greyish, or greenish-black. | Fracture, from fine-grained even to coarse-grained, un- even, very easily frangible, soft, easily scratched by the kira: Specific gravity taken in distilled water at the temperature of 60°, 3.1793. ** This is the highest and also the least valuable of the Crossbasket strata: of ironstone, which are at present raised for the use of the blast furnace. The thickness of the stratum is from three to three and a half inches. « (b) From Crossbasket. Colour light greyish-black. Fracture fine-grained, earthy, slightly uneven. Rather tough. Not particularly soft. Specific gravity 3.3801. ** This ore is found at a distance of four feet under the preceding one. It constitutes a stratum of about nine inches in thickness, and is esteemed the purest and most valuable of the Crossbasket ores. “ (c) From Crossbasket. Colour light greyish-black. Fracture fine-grained, earthy, slightly uneven. Rather tough, but more easily frangible, and softer than the last-mentioned ore. Specific gravity 3. 2099. The average thickness of the stratum is from six to eight inches. *(d) From Crossbasket. Colour bisbventantbi: dD 2 ; ’