" PROFESSOR WIGGLER" 77 
let us see, one, two, three, four perhaps five 
times. 
When he first emerged from the egg on the 
lilac -leaf he was indeed a tiny atom; his head 
would make a small show laid upon our page. 
When about a week old, by dint of a good appe- 
tite and voracious feeding, he had managed to 
" outgrow his skin," as it were. He could literally 
hold no more, and realizing that nature would 
come to his relief, he began to spin a tiny web 
upon the leaf-stalk in which to secure his hooked 
feet for a temporary rest, sleeping off his dinner, 
as it were. 
He is now a very quiet and circumspect young 
professor. It were indeed a dangerous experi- 
ment to wiggle in such a tight suit as now in- 
closes him, so he remains immovable and resigned. 
A strange process is now going on in his physiol- 
ogy. Hour by hour his outer skin is becoming 
detached from the under skin, and now 7 he is sim- 
ply inclosed within its sac. The shell of his 
former head has been crowded off his face, as it 
were, and has slid down towards the mouth of the 
new head within. Shortly after this feature has 
taken place the imprisoned caterpillar becomes 
restless to burst his bonds, and a quiet working 
motion begins, which gradually forces the skin in 
wrinkles towards the tail of the body, of course 
drawing it tighter and tighter about the head, and 
