It may be proper here to apologize for many of the subsequent conjectures on some articles of natural philosophy, as not being supported by accurate investigation or conclusive experiments. Extravagant theories however in those parts of philosophy, where our knowledge is yet imperfect, are not without their use; as they encourage the execution of laborious experiments, or the investigation of ingenious deductions, to confirm or refute them. And since natural objects are allied to each other by many affinities, every kind of theoretic distribution of them adds to our knowledge by developing some of their analogies. The Rosicrucian doctrine of Gnomes, Sylphs, Nymphs, and Salamanders, was thought to afford a proper machinery for a Botanic poem; as it is probable, that they were originally the names of hieroglyphic figures representing the elements. Many of the important operations of Nature were shadowed or allegorized in the heathen mythology, as the first Cupid springing from the Egg of Night, the marriage of Cupid and Psyche, the Rape of Proserpine, the Congress of Jupiter and Juno, Death and Resuscitation of Adonis, &c. many of which are ingeniously explained in the works of Bacon, Vol. V. p. 47. 4th Edit. London, 1778. The Egyptians were possessed of many discoveries in philosophy and chemistry before the invention of letters; these were then expressed in hieroglyphic paintings of men and animals; which after the discovery of the alphabet were described and animated by the poets, and became first the deities of Egypt, and afterwards of Greece and Rome. Allusions to those fables were therefore thought proper ornaments to a philosophical poem, and are occasionally introduced either as represented by the poets, or preserved on the numerous gems and medallions of antiquity.

The career of Erasmus Darwin (1731-1802) affords an extraordinary glimpse into the intellectual ferment of late-eighteenth- and early-nineteenth-century Britain. As a popular poet, practicing physician, inventor of speaking machines and mechanical birds, essayer of natural history from geology to meteorology, and proponent of an evolutionary theory that inspired his famous grandson Charles, he left a lasting impression on almost every branch of knowledge. His magnum opus, and the synthesis of his myriad interests, is The Botanic Garden (1792) — an epic poem that aims to "enlist the Imagination under the banner of Science." Part I, The Economy of Vegetation, sings the praises of British industry as a dance of supernatural creatures while part II, The Loves of the Plants, wittily employs metaphors of human courtship to describe the reproductive cycles of hundreds of flowers. Darwin supplements his accomplished verses with (often much longer) "philosophical notes" that offer his idiosyncratic perspective on the scholarly controversies of the day. Despite a recent surge of academic interest in Darwin, however, no authoritative critical edition of The Botanic Garden exists, presenting a barrier to further scholarship. This two volume set comprises a complete, meticulously transcribed, reading text — including all the poetry, prose apparatus, and illustrations — along with extensive commentary that situates Darwin within contemporary debates about the natural sciences. This set will be of interest to readers as the definitive reference edition of The Botanic Garden and due to its efforts to make the work more practically and intellectually accessible to seasoned and novice readers alike This second volume includes the full version of the second part of The Botanic Garden, The Lives of Plants along with the related textual apparatus consisting of the editors’ annotations, discussion of the illustrations, textual notes, and a taxonomic table of the flowers mentioned.