231 drawings contained in 5 of the original 15 printed covers. 103 drawings were used in the published parts and later in the complete volume, 65 are alternative drawings that remained unused, 63 were not used or described. They are by Thomas Allport, RK Greville, Rebecca Miller and others. Manuscript consists of 259 folio and quarto sheets with detailed notes on species described. Collection includes a printed prospectus for the book and a small number of dried specimens
