372 SMITH UTUCATTON OF THE THEORY OF 



Of 1 hese . reasons are given for regarding the Light factor 

 to be of somewhat minor importance. Atmospheric pressure 

 and Velocity of Wind are also of small importance except in 

 special rases. 



The observations to be taken in measurements of growth 

 1 1 < >m reserve are — 



(1) Shade Temperature of Air. 



(2) Humidity of Air. 



(3) Intensity of Light. 



(4) Temperature of Soil. 



(5) Rainfall. 



(6) General Organisation and Eabil of the Plant. 



I<>. The theory is possibly applicable to the common 

 phenomenon in the tropics of sharp bursts of growth of the 

 shoots of trees. This growth takes place from reserve stores. 



1 1. The theory is applicable to the growth of the fruits of 

 the O'anliflorous tree, Artocarpus integrifolia. A suggestion is 

 made that the biological advantage of Caulirlory is thai the 

 proximity of the fruit to stores of reserve food allows of more 

 rapid growth and the attainment of a greater size. 



12. If further factors, namely, those on which Assimilation 

 andTranspiral ion depend, are added, the theory may be applied 

 to eases of growth in whieh there is no reserve store There is 

 .i possibility of the explanation of cases of growth of great 

 irregularity on this theory by supposing that several different 

 factors in turn limit the growth for varying periods. 



L3. The Biological advantage of Reserve Food stoics may 

 probably consist in the ability of the plant to mow in the most 

 favourable time of the year and to carry on the processes of 



Minlat Km and storage in those periods which are not so 

 fa\ ourable to growl h. 



LIST OF LITERATURE. 

 1. Baranetzky, J. Die Tagliche Periodioital im Langen- 

 wrachsthum der BtengeL Mem, Acad. imp. des Sciences de 

 Petersbourg \ II' Serie. 187S. 



