XI. _Additional Observations on the Sensorial Powers._
XII. _Of Stimulus, Sensorial Exertion, and Fibrous Contraction._
XIII. _Of Vegetable Animation._
XIV. _Of the Production of Ideas._
XV. _Of the Classes of Ideas._
XVI. _Of Instinct._
XVII. _The Catenation of Animal Motions._
XVIII. _Of Sleep._
XIX. _Of Reverie._
XX. _Of Vertigo._
XXI. _Of Drunkenness._
XXII. _Of Propensity to Motion. Repetition. Imitation._
XXIII. _Of the Circulatory System._
XXIV. _Of the Secretion of Saliva, and of Tears. And of the
Lacrymal Sack._
XXV. _Of the Stomach and Intestines._
XXVI. _Of the Capillary Glands, and of the Membranes._
XXVII. _Of Hemorrhages._
XXVIII. _The Paralysis of the Lacteals._
XXIX. _The Retrograde Motions of the Absorbent Vessels._
XXX. _The Paralysis of the Liver._
XXXI. _Of Temperaments._
XXXII. _Diseases of Irritation._
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
Its panting leaves, and waves its azure curls;
Or spreads in gay undress its lucid form
To meet the sun, and shuts it to the storm; 10
While in green veins impassion'd eddies move,
And Beauty kindles into life and love.
How the first embryon-fibre, sphere, or cube,
Lives in new forms,--a line,--a ring,--a tube;
Closed in the womb with limbs unfinish'd laves, 15
Sips with rude mouth the salutary waves;
Seeks round its cell the sanguine streams, that pass,
And drinks with crimson gills the vital gas;
Weaves with soft threads the blue meandering