88 



StÅlfelt, M. g., 1920. Pomologisk Årsskrift, p. 125. 



Thoday, D., 1910. Proceedings of the Royal Society. London. Vol. 82 



B, p. 421. 

 Treroux, o., 1903. Flora. Vol. 92, p. 49. 



Wakbur», o., 1919. Biocheniische Zeitschrift. Vol. 100, p. 230. 

 Wkls, Fr., 1903. Comptes rendus. Paris. Vol. 137, p. 801. 

 WiEsNER, J. 1907. Der Lichtgenuss der Pllanzen. 

 "WILLST.Ä.TTER und Stoi.l, 1913. Untersuchungen uber Chlorophyll. 

 — »— , 1918. Untersuchungen iiber die Assimilation der Kohlensäure. 



APPENDIX. 



Details of the most imporlant experiments are given below. In 

 order to save space, the resiilts have been combined in a single 

 average figure in certain places where several experiments were 

 underlaken under similar condilions. Further, in tvvo or three places 

 in Tables VII and XI a reduction of the result to average light- 

 inlensily has been carried out, The average concenlration of the 

 carbon dioxide in the assimilation chamber has been calculaled 

 from the initial and final values. In the correclion of the values 

 in Tables I, IV, VIII, IX, and X to a CO.^ percentage of 1.70 mg. 

 per 3 lilres (O.57 mg. per lilre) il has been assumed that direct pro- 

 portionality prevails belween assiinilalion and CO2 coiicentraiion. 

 In the correclion of the values to a temperalure of 18" I have used 

 the coelficient 1,85 derived from the curve of Matthaei (1905), 

 which has been found to agree quile well with my results. 



