208 LIGHT, VEGETATION AND CHLOROPHYLL 



From some points of view these results are a little dis- 

 appointing; if, however, instead of calculating the quantity 

 of calories stored, we consider the manner in which they are 

 stored and their quaUty, we cannot but admire the perform- 

 ance of photosynthesis in transforming into food a quarter 

 of the energy stored, which is a two-hundredth part of the 

 energy received from the sun. 



