Kcport X:it. AIiis. 1884.— Masou. Baskot-work. 



PLATE LVII. 



93 



Fig. 93. One .sqnuio incli of liottom, Fig. 92. 

 Fk;. 94. Ouo sriiiare iiuli (if outside, Fig. 92. 

 Fk;. 95. Ouo 8(inare inch of iuside, Fig. 92. 



