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![Botanical gazette. Plants. I9I9] OSTERIIOUT—PHOTOSYNTHESIS AND RESPIRATION 61 The bubbling must be continued until the color becomes constant. When this is achieved we know that equilibrium has been estab- lished between](https://i0.wp.com/c8.alamy.com/comp/RHB3XG/botanical-gazette-plants-i9i9-osteriioutphotosynthesis-and-respiration-61-the-bubbling-must-be-continued-until-the-color-becomes-constant-when-this-is-achieved-we-know-that-equilibrium-has-been-estab-lished-between-the-co2-in-the-liquid-and-that-in-the-chamber-in-order-to-determine-when-the-color-of-the-indicator-has-become-constant-it-is-compared-with-a-series-of-buffer-solutions-having-the-same-concentration-of-in-dicator-and-contained-in-pyrex-tubes-of-the-same-size-as-described-in-a-previous-article-the-plant-is-now-exposed-to-sun-light-after-exposure-the-gas-is-again-bubble-RHB3XG.jpg?ssl=1)
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i9i9 Botanicali9i9 gazette.i9i9 Plants.i9i9 I9I9]i9i9 OSTERIIOUT—PHOTOSYNTHESISi9i9 ANDi9i9 RESPIRATIONi9i9 i9i9 61i9i9 Thei9i9 bubblingi9i9 musti9i9 bei9i9 continuedi9i9 untili9i9 thei9i9 colori9i9 becomes