- rhu . w<w. s. s. vol yjx.Pil. 



j;;;;:~:;;;;;m m„ 



hi 



Fig. 3. 



FCg. Z 



Hg. 5. 



J~ JicLjire, ZCtfv. 



Pro < feasor draper orv the ^btalogi^ of ' Rcbcfccurub ITecut a*uL 



the ChemicaL Hcyy~s. 



