■ 
PLATE XI, IV 
Fig. i. FOUR BATCHES OF EGGS. 
NATURAL SIZE 
Fig. 2. COLLECTIVE BATCHES OF EGGS IN 
STABLE MANURE, NUMBERING ABOUT 
i l5 oo. NATURAL SIZE 
I?. Ntwsttad — Photo. 
Fig. 3. 
EGGS ENLARGED 
