MANtTAI, OS NAfURE STUDY. 33 



As to division of blade, compare oak, maple, pas- 

 sion vine, water melon, tongue grass, and learn 

 the meaning of lobed, cleft, parted and divided. 

 As to variation, a number of leaves sbduld be 

 used, representing those with petioles, without 

 petioles ; with stipules, without stipules ; with bud 

 in axil, as common, simple leaf of almost any sort; 

 without bud in axil, as observed in any leaflet of 

 compound leaf; colors, red, yellow, green, varie- 

 gated, etc.; venation, parallel veined, netted veined. 

 Draw several kinds of simple leaves, showing 

 venation, petiole, etc. Draw several compound 

 leaves, such as horse chestnut, walnut, locust, 

 acacia, strawberry. 



Lead the children to see that the bud of a com- 

 pound leaf is found in the axil of the entire leaf- 

 stalk and not in the axils of the leaflets. Most 

 simple leaves have buds in the axil. The syca- 

 more and a few others may seem like exceptions 

 to the rule, as the bud in such trees is always 

 under the cup of the leaf-stalk. 



Under variation, may also be discussed bud 

 scales, as in hickory or lilac, modified for protec- 

 tion of the green leaves within ; the tendrils as in 

 pea vines ; spines as in barbery ; bulb scales as in 

 onion. This might be carried much further, but 

 the foregoing is thought to be sufficient for third 



