172 



THE GUIDE TO NATURE. 





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ON A HOT, DROWSY DAY IN AUGUST. 

 Note good positions of cows and excellent depth of focus. 



PHOTOGEAPHIC STUDY OF CROSS features of a woody stem. There is 



SECTIONS. rather a large central pith, surrounded 



Fig. i. — Apple Wood. — This cross sec- by a thick woody cylinder, and this in 



tion of a twig shows the characteristic turn by the cortex. Traversing the 



Fig. 2, APPLE ROOT. 



Fig. r, APPLE STEM. 



