XXXIII. ---- _of Sensation._
XXXIV. ---- _of Volition._
XXXV. ---- _of Relation._
XXXVI. _The Periods of Diseases._
XXXVII. _Of Digestion, Secretion, Nutrition._
XXXVIII. _Of the Oxygenation of the Blood in the Lungs and Placenta._
XXXIX. _Of Generation._
XL. _Of Ocular Spectra._

* * * * *

TO

ERASMUS DARWIN,

ON HIS WORK INTITLED

ZOONOMIA,

_By DEWHURST BILSBORROW._

* * * * *

HAIL TO THE BARD! who sung, from Chaos hurl'd
How suns and planets form'd the whirling world;
How sphere on sphere Earth's hidden strata bend,
And caves of rock her central fires defend;
Where gems new-born their twinkling eyes unfold, 5
And young ores shoot in arborescent gold.
How the fair Flower, by Zephyr woo'd, unfurls