504 



E. I. WERBER 



toto (fig. 4) it almost made the appearance of a perfectly cyclo- 

 pean monster, there being only a single median eye present with 

 one centrally located lens. The pigment wall of the eye-bulb, 

 however, was strikingly abnormal, because presenting a figure 

 similar to two C's blended at their opposite ends, it indicated 



ts. 



Fig. 45 Camera lucida drawing of a transverse section through the eye of the 

 embryo in figure 4. t.s., tissue spaces;/., fibrin. X 173^ 



the composition of the eye of the ophthalmoblastic materials of 

 both sides. 



On microscopic examination of this embryo the following find- 

 ings were noted. The eye is composed of two incomplete optic 

 cups facing each other and enclosing a single lens of about the 

 usual size (fig. 45). The cornea and iris are apparently normally 

 developed. The anterior chamber of the eye is absent and the 



