38 TEXAS NATURE OBSERVATIONS AND REMINISCENCES. 



on much of this calcareous outer 

 shell is absorbed by the growing 

 embryo. Some of the eggs were 

 disinteenrated through artificial 

 means or partly dissolved in the 

 preserving fluids in which the 

 eggs were mounted for microscop- 



but in this case they were about 

 three times larger than when first 

 laid by the old tick, when they 

 were more of a yellowish r. d, glit- 

 ttering color. In its further devel- 

 opment the inside, oval-shaped 

 body, the developing tick embryo 



Cattle Tick Eggs in Various Stages of Development, Some Maturing 

 (Very highly magnified) 



ic examination, in order to make 

 the outside hulls and the egg cav- 

 ity more translucent and the form- 

 ing tick embryo better visible. 



The original size of these same 

 tick eggs is not much larger than 

 an ordinary small sized pinhead, 



keeps growing and absorbing its 

 eggs elements, assuming the shape 

 and consistency of a miniature rub- 

 ber ball, with several indentations 

 along its dorsal and abdominal 

 side, and gradually eight legs 

 form, when, after another cycle of 



