the ultimate forms', i. e. the individuals comprised in a species, as rendered above. This, however, seems a scarcely tenable translation of the words, and I prefer, as a possible emendation, that we should read tu ecxura without ^Cf. i. I. 639^'27 * ^The division into Homogeneous and Heterogeneous parts corre-' De G. et C. ii. 2-3, Meteor. iv. coagulation, liquefaction, &c. * Cf. Thackrah, On the Blood, p. 131 : ' Fat animals have I believe considerably less blood in proportion to their weight

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... than lean ones ; and in the fat human subject venesection shows the veins to be comparatively small, and the quantity of blood, even wheiytwo or three vessels are opened, is less than flows from one vein of a lean person ' etc. and in the Calamaries there is the so-called gladms. In the Poulps,'^on the other hand, there is no such internal part, because the body, or, as it is termed in them, the head,^forms but a short sac, whereas it is of considerable length in the other two ; and it was this length which led ^Cf. iv. 8. 683^' 25 note. ^Cf. iii. 9. 67 1*' 32 note. ^Cf. iii. 4. 666'^1 3 note. * Read t6 for rd and yPos after TToXvndbcov (Platt). " Cf. iv. 9. 685*^5 note.