diary hy 
te 
present, then it may take some other form of force, e. g., heat or 
308 J, LeConte on the Correlation of Forces. 
che 
illustration used above. Matter falling from plane No. 2 to 
ge matter of the seed is decomposed. This decomposition sets 
be effected by the heat and perhaps (according to Hunt) by the 
actinic rays of the sun.* Heat and actinic rays have been 
spoken of by many writers, e. g., by Carpenter and by Robert 
sugar. Starch as is well known differs from sugar in two Im 
portant respects, viz., it is insoluble and it is more highly car 
* See Report hy Rebert Hunt on the h of Plants, Rep. Brit. Assoc. 1846, 
B24 tes7, p70.” arotethint Riel Her : 
Robert Hunt, Rep. Brit Ass., 1847. p. 20-22. Carpenter, Comp. Phys. p. 28 
der, Ciem. An. and Veg. Phys, pp. U8, 230 . 
a Si 
