By John Stevens Henslow
John Stevens Henslow (1796-1861), a scholar of Adam Sedgwick, grew to become Professor of Mineralogy at Cambridge in 1822. He quickly moved to a chair in Botany, and have become a instructor and mentor to Charles Darwin. This booklet on mineralogy was once first released in 1823. It was once meant to avoid wasting time at school via supplying an simply obtainable connection with the composition of assorted minerals in accordance with the rules of atomic conception, which used to be then coming into the clinical mainstream. In that paradigm, research and exam of any mineral's composition concerned first ascertaining the mineral's trouble-free molecules, either 'essential' and 'accidental', and moment, identifying the proportions within which the basic materials mixed to shape the integrant molecule of the mineral. Henslow's ebook will curiosity historians of technology tracing the advance of atomic thought, and people operating extra commonly within the historical past of collage schooling and the highbrow weather of the 19th century.
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Additional resources for A Syllabus of a Course of Lectures on Mineralogy
For 10, — 6. — , 10. 23, 10. , 11. — 36, 17. 47, 12. ^ , 19. 3 79, 12. Light read No light. niamellated maniillated. 85° 45' 94° 15'. symetrical symmetrical. 10 200. symetrical symmetrical. :: 1000 : 1 :: 1: 1000symetrical symmetrical. 5 SI OF LECTURES ON MINERALOGY. of Natural History into three branches— subdivision into two—distinction between organized and unorganized bodies—Minerals, simple and compound. Elementary bodies — compound substances. Definition of a simple Mineral—integrant molecule —component (or elementary) molecules.
Theory. i. 66 Sulphur. 15 52. 33 Bucholtz Theory. Proust Theory. Iron . . 06 1 Sulphur. 64 II. Prim. Cube. in. Crystals 40. Amorphous—pseudomorphous. iv. G. 8. vi. White Iron pyrites. Hatchet Iron Sulphur Theory. 18 + Arsenical Iron pyrites—Auriferous. LECTURES ON MINERALOGY. 17 Species 6. Sulphate of Iron—Green vitriol. Berg. Theory. i. 6 + 4 II. Prim. Acute rhomboid P. P. = 81° 23'. in. Crystals 7—fibrous—pulverulent — amorphous —stalactitic. Species 7. Carbonate of Iron—Spathose Iron —Brown Spar.
85+ 1 53. 1 Iron . . 4 19 LECTURES ON MINERALOGY. M. T. = ii. Prim. Right rhomboidal prism. I l l 0 18'. in. —Amorphous. iv. S. G. 5223. Species 11. Arseniate of Iron. Chenevix Vauq. i. Ox. Iron . 31. 18 Water . . 5 32 Silica . . 4. Lime 2 Copper.... 9, II. Prim. Cube. in. —Concretionary—amorphous. iv. S. G. = 3. Species 12. Chromate of Iron. Tassaert i. Ox. Iron . . 36. 6 Silica Alumina Loss 4 Ox. I r o n . . 9 + Chrom. 0 + Vauq. Laog. Klap. 7 34. 43. 53. 2. 1. 3 11. 1. 7 34. 43. 5 2. 6.
A Syllabus of a Course of Lectures on Mineralogy by John Stevens Henslow