the requirements of the French much less, it would then have been said that the motion of the various parts where marsh cultivation is carried on. The capital may well prove the subject of extended investigation the air gave to the comparatively empty vessel a greater ca- sewage being thus brought… … so far from benefiting the tion, but the apparent results farmers, has only served tr< Fig. 2.-SEWAGE-PTTRIFYING BASINS, GENNEVILLIERS, NEAR PARIS. were different. ) 1877 SCIENTIFIC AMERICAN, INC.
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