Returns Smith's 'Mentha gentilis', believes it the plant of Linnaeus and wild although [Edmund] Davall not as as specific as he would wish, makes his own observations including reference to [John] Ray's "Hist[oriae plantarum]", only needs to see [Philip] Miller's 'M. gentilis' and 'M. sativa' specimens to complete his work. Observations on the 'M. corolla', believes it will help distinguish most species. Observations on Smith's notes of the different specimens: 'M. arvensis', 'M. sativa', 'M. sylvestris', 'M. rotundifolia', 'Menthiastic aquatici'; hopes [Samuel] Goodenough has conceded that his 'Mentha villosa' is 'M. sylvestris'; further observations on these in postscript. Explains errors is Fuschius' figures. Thanks Smith for specimen of 'Schoenus ferrugineus'. Miller's 'Mentha gentilis'.