Is this not absurd, when the same child can come home from school and talk glibly of a parallelepipedon, a rhombus, rhomboid, polyhedral angle, archipelago, law of primogeniture, the binomial theorem, and of a dicotyledon!

5.Various Kinds of Epithelial Cells A, columnar cells of intestine; B, polyhedral cells of the conjunctiva; C, ciliated conical cells of the trachea; D, ciliated cell of frog's mouth; E, inverted conical cell of trachea; F, squamous cell of the cavity of mouth, seen from its broad surface; G, squamous cell, seen edgeways.

Gone the measure polyhedral!

(AFTER RANVIER) A, The horny layer of the epidermis; B, the rete mucosum; a, the columnar pigment-containing cells of the rete; b, the polyhedral cells; c, the stratum granulosum; d, the stratum lucidum; e, swollen horny cells; f the stratum squamosum.

Directly superposed to these we find cells which in shape are polyhedral.