Contr. Nat. Herh., Vol. IX. PLATE XV. 
SEA BEANS, SHOWING AIR SPACES WHICH GIVE THEM Buoyancy. 
AND SEEDS OF LENS PHASEOLOIDES HAVING AIR SPACE INCLOSED 
LEDONS. SEEDS OF GUILANDINA CRISTA WITH A 
AND THE SHELL. 
SECTION OF Pop 
BETWEEN CorTy- 
IR SPACE BETWEEN THE KERNEL 
