A treatise on the origin, nature, and varieties of wine : being a complete manual of viticulture and œnology / y J.L.W. Thudichum and August Dupré.

  • Thudichum, J. L. W. (John Louis William), 1829-1901
Date:
1872
Catalogue details

Licence: Public Domain Mark

Credit: A treatise on the origin, nature, and varieties of wine : being a complete manual of viticulture and œnology / y J.L.W. Thudichum and August Dupré. Source: Wellcome Collection.

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    FIG. 18. Vine trained according to the system of Guyot, as it appears after being pruned . . . 19. Vine trained according to the system of Guyot, as it appeal's at the period of growth when the flower buds are developed and pinching may be effected . . . . . • • • • • 20. Line of Vines trained according to the system of Guyot, with stakes and wires, in full bearing 21. Mode of separating stalks from grapes by stirring with a trident . 22. Machine for separating grapes from stalks ...... 23. Grape mill for crushing grapes, with grooved rollers .... 24. Wine press as used in the Gironde for pressing the murk of red wine after fermentation ......... 25. Wine press as used in the Gironde for pressing white grapes before fermentation .......... 26. Specific gravity bottle .......... 27. Apparatus employed for the distillation of wine , . 28. Elevation and section of Pohl’s Ebullioscope ..... 29. Crockford’s Patent Spirit Indicator, with hydrometer for taking the specific gravity of the wine ........ 30. Geisler’s Vaporimeter ......... 31. Silbermann’s Dilatometer ......... 32. Apparatus employed for the decomposition of the fixed ethers of wine, and for the distillation of acetic acid in the estimation of fixed ethers 33. Water-bath 34. Measuring flask ......... ^ 35. Assay Flask ......... \ 36. Polarization of Light by reflection ....... 37. Showing the direction of the vibrations in a ray of light, &c., polar- ized by reflection .......... 38. Elevation and section of an elongated prism of Iceland spar-, showing the direction in which it is cut when made into a Nicol’s prism 39. Longitudinal section of Nicol’s prism ..... j 40. Sections of two Nicol’s prisms superimposed . . . . \ 41. Cylinder of a substance possessing the power of circular polarization . 42. Jellett’s Polarometer arranged for an experiment .... 43. Right prism of Iceland spar cut from an elongated rhombic prism 1 44. Perspective view of Jellett’s analysing prism . . . . ) 45. Section of Jellett’s analysing prism ...... i 46. Diagram of the planes of polarization in Jellett’s prism . . ) I'AGK 77 81 87 105 106 107 108 109 134 »35 143 144 148 153 205 206 207 232 233 234 235 236 240 242 243