WONDERS OF THE MICROSCOPE 



I. Male Orange-tip Butterfly (Euchloe cardamincs} uncoiling its proboscis. 2. Egg of Orange-tip Butterfly, magnified 25 dia- 



met<- I, ady Butterfly, magnified is diameters. 4. Par .'MI'), just cm. 



from its ch- roken pupa skin is seen beneath. 5. Transverse Beech (Fagus sylvatifa) with tissues 



artificially stained to aid in their identification, <-.K. innermost the ; lue). magnified 40 diameters. 6. Siliceous 



shells which enclose the microscopic plants called Diatoms, magnified 100 diameters. 7. Silkv.'.is :,kd. unicellular 

 animals known as Radiolaria. magnified loo diameters. 



