The International Exhibition: Weeks' glass wall, 1862. 'John Weeks and Co., King's-road, Chelsea, make a display of models of conservatories, improved boilers, and ornamental heating-stacks. The former exhibit great elegance and scientific attention to ventilation. The new apparatus adopted for this purpose renders unnecessary all lines, weights, and pulleys. One movement suffices to raise every alternate top light from the rafter without overlapping the bottom one. Abundant circulation of air is thus provided without the establishment of fierce currents, so detrimental to vegetation. While but one thickness of glass is maintained above the plants, the access of rain is prevented'. From "Illustrated London News", 1862.
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