Hill, J., Baldwin, R., Ridley, J., Nourse, J., Becket, T., Elmsley, P., . . . Balfour, J. (1772). THE VEGETABLE SYSTEM. OR, The INTERNAL STRUCTURE AND The LIFE of PLANTS ; Their PARTS, and NOURISHMENT, Explained ; THEIR CLASSES, ORDERS, GENERA, and SPECIES, Ascertained, and Described ; In a METHOD altogether NEW : COMPREHENDING AN ARTIFICIAL INDEX, AND A NATURAL SYSTEM. With FIGURES of all the PLANTS ; Designed and Engraved by the AUTHOR. The Whole from NATURE only: VOL. XX., Containing PLANTS with irregular FLOWERS of One, Two, Three, and Four Petal. London: Printed for the Author in St. James's-Street : And Sold by R. Baldwin, in Pater-Noster-Row ; J. Ridley, in St. James's Street ; J. Nourse, T. Becket, P. Elmsly, and J. Cambell, in the Strand ; and J. Balfour, at Edinburgh.

Hill, John, Richard Baldwin, J. Ridley, John Nourse, Thomas Becket, Peter Elmsley, J. Cambell, and John Balfour. THE VEGETABLE SYSTEM. OR, The INTERNAL STRUCTURE AND The LIFE of PLANTS ; Their PARTS, and NOURISHMENT, Explained ; THEIR CLASSES, ORDERS, GENERA, and SPECIES, Ascertained, and Described ; In a METHOD Altogether NEW : COMPREHENDING AN ARTIFICIAL INDEX, AND A NATURAL SYSTEM. With FIGURES of All the PLANTS ; Designed and Engraved By the AUTHOR. The Whole From NATURE Only: VOL. XX., Containing PLANTS With Irregular FLOWERS of One, Two, Three, and Four Petal. London: Printed for the Author in St. James's-Street : And Sold by R. Baldwin, in Pater-Noster-Row ; J. Ridley, in St. James's Street ; J. Nourse, T. Becket, P. Elmsly, and J. Cambell, in the Strand ; and J. Balfour, at Edinburgh, 1772.

Hill, John, et al. THE VEGETABLE SYSTEM. OR, The INTERNAL STRUCTURE AND The LIFE of PLANTS ; Their PARTS, and NOURISHMENT, Explained ; THEIR CLASSES, ORDERS, GENERA, and SPECIES, Ascertained, and Described ; In a METHOD Altogether NEW : COMPREHENDING AN ARTIFICIAL INDEX, AND A NATURAL SYSTEM. With FIGURES of All the PLANTS ; Designed and Engraved By the AUTHOR. The Whole From NATURE Only: VOL. XX., Containing PLANTS With Irregular FLOWERS of One, Two, Three, and Four Petal. London: Printed for the Author in St. James's-Street : And Sold by R. Baldwin, in Pater-Noster-Row ; J. Ridley, in St. James's Street ; J. Nourse, T. Becket, P. Elmsly, and J. Cambell, in the Strand ; and J. Balfour, at Edinburgh, 1772.