290 



LIST OF PLATES. 



Sphaeraphides in Mercurialis 



Sphseria 



Spine of Amphidotus 



Stellate Hairs from Niphobolus 



Sting of Wasp 



Thrips 



Tongues of Drone-Fly and Blow-Fly 



Tortoise-Tick 



Trombidium 



