Edible Products. 



216 



[September, 1911, 



direction to that which can be explained 

 by a consideration of their grand 

 periods of growth. 



The real explanation, I believe, of 

 most of these irregularities is to be 

 found in the high tensions between the 

 neighbouring leaves. The latter are 

 packed closely together, and growing at 

 unequal rates, must mo ye along each 

 other with considerable friction and set 



make the growth evidently jerky. These 

 tensions are probably responsible for 

 the equal elongation usually exhibited 

 for a longer or shorter time by the 

 two youngest leaves. The tendency is 

 certainly for the younger leaf to 

 grow the more rapidly, but the 

 difference is not great enough to prevent 

 their holding fast, one to the other, 

 sometimes for a term running into 

 weeks. 



up tensions whose occasional release will 



Table //.—Growth op Leaves, Beginning October 11 









Tree A. 











Tree B. 







Leaf 1 



n 

 u 



1 



2 



Q 



1 







l V 



1 



2 



Q 

 O 



A 



i. 



October 



12 ... 





20 



20 



... 



... 



... 







17 



14 





... 





15 ... 





66 



59 



7 



2 



... 



... 



60 



46 



3 





> , 



17 ... 





56 



60 



2 



1 





... 



39 



26 



1 



... 





19 ... 





62 



49 



5 



4 



... 



... 



49 



28 



1 



... 



,< 



23 ... 





84 



47 



6 



3 





... 



72 



43 



2 





I, 



26 ... 





80 



55 



12 



2 



2 



.;. 



60 



35 



5 



"3 



»» 



31 ... 





122 



120 



14 



4 



4 







1C0 



56 



6 



3 



November 



4 ... 





80 



68 



4 



4 



... 







90 



22 



6 



4 



>» 



7 ... 





80 



35 



6 



7 







73 



18 



6 



2 





10 ... 





86 



15 



5 



2 







50 



14 



3 



1 



> > 



13 ... 





90 



16 



6 



2 







78 



15 



4 



1 





16 ... 





88 



15 



7 



1 





... shows 



79 



17 



3 



2 



5' 



19 ... 





76 



12 



2 







78 



78 



16 



5 





II 



22 ... 





80 



15 



6 



"i 





66 



66 



17 



4 





, ' 



26 ... 





82 



15 



4 



i 





69 



69 



20 



6 







30 ... 



shows 



87 



28 



3 



2 





71 



71 



30 



5 





December 



4 ... 



96 



96 



31 



4 







... 103 



83 



29 



4 





II ; ' f 



11 ... 



232 



175 



66 



8 







... 180 



160 



63 



12 





11 



24 ... 



117 



92 



42 



6 







shows 140 



122 



42 



8 





January... 



3 shows 127 



81 



31 



4 







113 106 



92 



32 



6 





10 146 



146 



56 



29 









123 118 



68 



12 



11 





... 



17 192 



189 



42 



28 









134 123 



69 



13 



5 





ii 



22 139 



135 



30 



30 









132 126 



40 



16 







,, ... 



28 149 



148 



21 



7 









151 121 



26 



5 







February 



1 169 



160 



20 











150 100 



10 









ii ... 



4 182 



175 



20 











166 110 



10 









i, ••• 



8 shows 186 



160 



21 









shows 176 



116 



"9 















Tree E. 













Tree D. 







October ... 



15 





















218 



158 



16 



3 



,, ... 



17 





















56 



28 



4 



2 





19 





















55 



26 



3 





,, ... 



23 







leaves marked 











104 



57 



6 





,, ... 



26 







140 



140 



55 



9 









87 



36 



6 



"2 



••• 



31 







235 



230 



59 



13 



3 







140 



135 



15 



5 



November 



4 







200 



106 



60 



12 



1 







101 



90 



7 



8 



,, ... 



7 







161 



99 



53 



9 



L 







96 



86 



8 



6 



,, 



10 







102 



81 



43 



10 



1 







90 



80 



7 



5 



,, ... 



13 







91 



62 



39 



11 



2 







86 



77 



6 



2 



,, 



16 







92 



61 



40 



10 



2 







81 



69 



9 





11 ••• 



19 







91 



51 



35 



7 



2 







99 



57 



3 



"2 





22 





shows 93 



59 



38 



8 



3 





shows 



93 



58 



8 





,, •■• 



26 





98 



98 



63 



34 



6 



3 





91 



91 



59 



11 





,, ... 



30 





100 



100 



76 



38 



6 



8 





116 



93 



36 



23 





December 



4 





96 



96 



71 



34 



7 



6 





102 



99 



46 



29 





■ ,1 ••* 



11 





192 



190 



186 



62 



13 



8 





190 



180 



81 



39 





11 ... 



21 





190 



182 



162 



51 



8 





shows 146 



122 



68 



21 





January 



3 shows 186 



91 



81 



47 



8 





157 



157 



96 



56 



11 





11 ••• 



10 



179 



179 



86 



60 



33 



9 





148 



148 



87 



42 



7 





11 ... 



17 



168 



168 



57 



40 



21 



6 





129 



124 



68 



51 



3 





,1 ... 



22 



156 



156 



50 



37 



20 



4 





136 



125 



59 



47 







1, ••• 



28 



186 



186 



59 



27 



5 



2 





198 



180 



44 



20 



"2 





February 



1 



189 



189 



66 



18 



9 



2 





200 



160 



33 



12 







i> 



4 



200 



190 



77 



15 



8 



3 





205 



160 



32 



11 



"3 





» •»• 



8 



201 



196 



82 



14 



5 



1 



• •4 



206 



181 



36 



ia 





••• 



