[400] Ibid. 398.
[401] Introd. to Comp. Anat. ii. 399—. Engl. Trans.
[402] Reaum. i. 409, 643—. Malpigh. De Bombyc. 38.
[403] Lesser L. ii. 87 note *.
[404] Ubi supra.
[405] Reaumur iv. 264.
[406] Ibid. 260—.
[407] Herold Schmetterl. 24.
[408] Anat. Comp. iv. 165.
[409] Marcel de Serres (p. 67.) speaks of this fluid as being, after it has transuded through the intestinal canal, a fluid in repose, which seems to indicate that it is perfectly stagnant; but when we consider that it is not only incessantly entering the body and making its way to every part, but is also, by means of the various secretory organs, constantly converted into new products, and so going out again in many cases, it will appear evident that it cannot be considered as a stagnant fluid, since there must be a constant though probably slow motion towards the points of absorption or imbibition.