Fig. 5. Thin section of a nuclear poly- Fig. 7. Blood smear from a larva of Sphinx 



hedron from a larva of T. paludosa; Ugustri infected with a nuclear and a cytoplasmic 

 there is some suggestion of a regular polyhedrosis. Note the stained crystals of the 

 arrangement of the virus rods. (Magni- latter. (Magnification: X 630.) 

 fication: x 30,(KK>.) Fig. 1, 3, 6 and 7 from Smith and Xeros, 



1953h, 1954 a,b,c. 



3 -A 



(b) 



/ 









C-" > *- l Sr&l'.i ^'A 



XT • fit --' .' ■ / » /s 





^ 



, <- 



Fig. 6. (a) Nuclear polyhedra with T. paludosa before treatment from weak alkali ; 

 (b) the same polyhedra after treatment. Note the peculiar elongation of the crystals. 

 (Magnification: X 150.) 



