THE NATURALIST, 1907. PLATE XI. 
Fic. 1.—One day old. Fic. 2.—Seven days old. 
Fic. 3.—Fourteen days old. Fic. 4.—Fourteen days old. 
Fic. 5.—Twenty-one days old. Fic. 6.—Twenty-one days old. 
Young of Pipistrelle or Common Bat. 
