. Effects of the rays of radium on plants . Fig. 26. Experiment 36. Retardation of Germination and Growth of Oats by Placing in the Soil a Celluloid Rod Coated with Lieber's Radium Coating. Cf. FIGURE 24. was placed the sealed glass tube containing the RaBr^ (1,500,000 x ), into the second (R') four rods coated with "Lieber's radium-coating" 25,000 X ), the third served as a control, with no radium. May 19, 5 P. M. The lengths of the hypocotyls above the surface of the soil were as follows : C Control miti. 99-50 91,50 t mm. Average of 8
. Effects of the rays of radium on plants . Fig. 26. Experiment 36. Retardation of Germination and Growth of Oats by Placing in the Soil a Celluloid Rod Coated with Lieber's Radium Coating. Cf. FIGURE 24. was placed the sealed glass tube containing the RaBr^ (1,500,000 x ), into the second (R') four rods coated with "Lieber's radium-coating" 25,000 X ), the third served as a control, with no radium. May 19, 5 P. M. The lengths of the hypocotyls above the surface of the soil were as follows : C Control miti. 99-50 91,50 t mm. Average of 8: Averageof7: Average of 8 : 4- mm. mm. mm. *To top of arch. tTo top of arch. Went bad. R R' Tube, 1,500,000 X Coated Rods mm. mm. * * mm. mm.
Size: 2905px × 1720px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublisher, booksubjectplants
