Archive image from page 71 of The culturing of algae; a. The culturing of algae; a symposium culturingofalgae00phyc Year: 1950 ( (t inr u rf AIR CO2 MIXTURE FLOWMETERS C' THERMAL WELL ' ,-SOLENOID VALVE PHOTO CELL CIRCUIT i .1 AERATION LINE CULTURE OVERFLOW Fig. I—Artificial light continuous culture apparatus in 4 in. column. assured. The aeration mixture is controlled by pressure reducers and needle valves on a compressed air line and cylinders of com- pressed carbon dioxide. Each gas is metered through manometer flow-meters. Cotton gas filters are used, all connections are sterile, and
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Archive image from page 71 of The culturing of algae; a. The culturing of algae; a symposium culturingofalgae00phyc Year: 1950 ( (t inr u rf AIR CO2 MIXTURE FLOWMETERS C' THERMAL WELL ' , -SOLENOID VALVE PHOTO CELL CIRCUIT i .1 AERATION LINE CULTURE OVERFLOW Fig. I—Artificial light continuous culture apparatus in 4 in. column. assured. The aeration mixture is controlled by pressure reducers and needle valves on a compressed air line and cylinders of com- pressed carbon dioxide. Each gas is metered through manometer flow-meters. Cotton gas filters are used, all connections are sterile, and the usual aseptic techniques are employed. A photograph of the apparatus is shown in Figure 2.