TRAXSPmATTON OF PLAiVTS 



95 



Taking the mean of the three series, the results 



are as 



folio 



ws : 



R. 



5-09 



Y. 



4-46 



a. 



4-82 



B. 



4-70 



V. 



606 



CI. 

 5-20 



These give decided maxima under red, violet, and clear glass, 

 with minima under tlie central portion of the spectrum. 



JBox. 

 Six small Box plants, well rooted, were grown in pots 



as 



described, with the following results after twenty-four hours' 

 exposure in each case. 



Eange of temperature 57°-65°. 



1 



No. 



R. 



Y. 



a. 



B. V. 



CI. 



•74 

 114 



1-17 

 1-43 

 2-40 



2-35 



I 



II 



III 



IV 



V 



VI 



•75 



1-37 

 1-30 



1-71 



3-48 



2-58 



•65 



1-37 



•88 



1-96 

 3-64 



2-91 



1 



•76 



1-38 

 1-21 



2-63 

 3-72 

 2-33 



1203 



200 



•81 



1-23 



104 



2-47 

 3-54 



2-83 



100 

 1*52 

 1 -48 



2-82 

 315 

 2-67 



Total ... 



1 



Mean ... 



1119 

 1-3G 



11-41 



r90 



11-92 

 1-98 



12G4 

 2^10 



9^23 



1 



1-54 



In this, as in the following case of Palms, the differences are 

 not so pronounced ; but violet glass still shows a maximum. 



Palms, 



Three small Palms of undetermined genera and species were 

 grown and protected from evaporation in the same manner as in 

 the preceding experiments, and subjected to each of the glasses 

 for twenty-four hours successively. The losses in weight were as 



follows : 



Temperature varied from G0° to G8 



No. 1. 



o 



1 



R. 



Y. 



1 



G. 



■84 



B. 

 •73 



V. 



•95 



CI. 



1 



102 



109 



Ml 





•70 



•97 



•90 



•96 



•93 



113 





1*22 



•87 



•85 



•85 



•99 



•79 





•73 



•88 



•62 



•58 



•71 



• 69 



Totals 



•66 



•63 

 4^44 



•53 



1 

 1 

 1 



•69 

 381 



•66 

 4-24 



•81 

 i 453 



4-23 



374 



