and Laboratory Methods. 



11()9 



/^?ri /• 



''^ — ■■ f ■ ,' 



u u 



-^^^T-i-^n.^/^ ^-^^/y^-^-ti^. 



■<^'<^2^'C'C&<^. 



-'i^-ti'^^Z^^^ 



Fig. .S. 



Q^Xi^i^Vf Of- fo (MlAX/l'CCL/ ■ 



Bsicier/^. Yellow. 

 Aoii</. White. 



Fig. 4. 



