54 
[QWA ACADEMY Oi? SCIENCE 
1, Russet Apple. 2. Iowa Blush. 3. Northern Spy, 4. Crab Apple. 
. 5. Willow Twig. 6. Baldwin, 
e— epidermis. JLe— lower epidermis of cotyledon. Sc— Sclerotic layer, ip— palisade cells , 
lower side cotyledon. C— cross cells. Ue— upper epidermis. Si— starch layer. C7p— pal 
isade cells, upper side of cotyledon. P— perisperm. Je— inner epidermis. Pw— endos- 
perm 
