PLATE 10 



EXPLAXATION OF FIGURES 



28 Transverse section a short distance behind the left lymph heart indicated 

 in figure 27. Series 53, slide 3, row 4, section 3. X 1100. 



REFERENCES 



I., extreme posterior tip of the anterior p. a., dorsal anastomosis connecting 

 anlage of the inferior lateral lymph the two postcardinal divisions 



duct, shown in figure 27 as a ventral b.c, blood corpuscles 



sprout of the lymph heart ep., epidermis 



p.L, lateral division of the postcardinal u\, pronephric duct 



REFERENCES 



29 Eighteen sections caudad of the level represented by figure 28. X 1100. 

 Series 53, slide 3, row 5, section 4. X 1100. 



m., mesenchymal cells; no indication P-o-, ventral postcardinal anastomosis; 

 of a lymphatic anlage other explanations the same as above 



202 



