A Catalogue of the Fifty Plants from Chelsea Garden, Presented to the Royal Society by the Worshipful Company of Apothecaries, for the Year 1764, Pursuant to the Direction of Sir Hans Sloane, Bart. Med. Reg. et Soc. Reg. Aliquando Praeses; By John Wilmer, M. D. Clariss. Societatis Pharmaceut. Lond. Soc. Hort. Chelsean. Praefectus et Praelector Botanic

XV. A Catalogue of the Fifty Plants from Chelsea Garden, presented to the Royal Society by the Worshipful Company of Apothecaries, for the Year 1764, pursuant to the Direction of Sir Hans Sloane, Bart. Med. Reg. et Soc. Reg. aliquando Praeses: By John Wilmer, M.D. clariss. Societatis Pharmaceut. Lond. Soc. Hort. Chelsean. Praefectus et Praelector Botanic. Read March 14, 1764. 2101 Achillea foliis bipinnatis subpilosis, laciniis linearibus, dentatis, auriculis decussatis. Linn. Sp. plant. 1267. 2102 Achillea foliis setaceis dentatis, denticulis subintegris subulatis reflexis. Hort. Cliff. 412. 2103 Amaranthus glomeribus triandris pentandriisque, foliis ovatis obtusissimis emarginatis rugosis. Linn. Sp. plant. 1403. 2104 Anastatica foliis obtusis, spicis axillaribus brevissimis, siliculis ungulatis spinosis. Linn. Sp. plant. 895. 2105 Antirrhinum foliis lanceolatis sparsis, inferioribus oppositis, nectariis subulatis, floribus subfessilibus. Hort. Cliff. 498. 2106 Astragalus caulescens procumbens, leguminibus contortuplicatis villosis. Linn. Sp. plant. 1068. 2107 Bidens foliis trifidis quinatisque ferratis petiolatis, pedunculis longissimis. 2108 Borago foliis ramificationum oppositis amplexicaulibus, calycinis foliolis sagittatis. Linn. Sp. plant. 197. 2109 Bupleurum frutescens, foliis obovatis integerimis. Linn. Sp. plant. 343. 2110 Carica foliorum lobis sinuatis. Hort. Cliff. 461. 2111 Cassia foliis octojugis ovato-oblongis æqualibus, glandula baseos petiolorum. Hort. Cliff. 159. 2112 Chrysanthemum Indicum foliis simplicibus ovatis sinuatis angulatis ferratis acutis. Linn. Sp. plant. 1253. 2113 Cistus (Ægyptiacus) herbaceus erectus stipulatus foliis lineari lanceolatis petiolatis, calycibus inflatis corolla majoribus. Linn. Sp. plant. 742. 2114 Cleome floribus gynandris, foliis quinatis, caule inermi. Linn. Sp. plant. 938. 2115 Corchorus capsulis linearibus compressis, foliis lanceolatis æqualiter ferratis. Linn. Sp. plant. 746. 2116 Coris (Monspeliensis). Linn. Hort. Cliff. 68. 2117 Coronilla fruticosa, foliis quinatis ternatisque lineari-lanceolatis subcarnosis obtusis. Linn. Sp. plant. 1047. 2118 Crambe foliis laciniatis, caule erecto ramosissimo. Dict. Hort. 2119 Crepis foliis amplexicaulibus Lyrato runcinatis. Hort. Cliff. 79. 2120 Cyno- 2120 Cynosurus spicis quaternis obtufis patentibus dimidiatis, calycibus mucronatis, caule repente. Linn. Sp. plant. 106. 2121 Cytisus floribus umbellatis terminalibus, caulibus erectis, foliolis lanceolatis. Linn. Sp. plant. 1042. 2122 Delphinium nectariis diphyllis. 2123 Dianthus floribus solitariis, squamis calycinis subulatis tubam æquantibus, petalis multifidis. Amœn. Acad. 4. p. 313. 2124 Dianthus floribus paniculatis, squamis calycinis brevibus acuminatis, corollis multifido capillaribus, caule erecto. Amœn. Acad. 4. p. 272. 2125 Dipsacus foliis petiolatis appendiculatis. Hort. Upsal. 25. 2126 Genista foliis ternatis subtus villosis, pedunculis lateralibus subquinque floris foliolatis, leguminibus hirsutis. Amœn. Acad. 4. p. 284. 2127 Gentiana corollis quinquefidis hypocrateriformibus, faucæ barbatis. Linn. Sp. plant. 334. 2128 Hieracium foliis lanceolatis amplexicaulibus dentatis, floribus solitariis, calycibus laxis. Hort. Cliff. 387. 2129 Imperatoria. Hort. Cliff. 103. 2130 Isatis foliis omnibus dentatis. Linn. Sp. plant. 937. 2131 Malpighia foliis ovatis integerrimis glabris, pedunculis umbellatis. Hort. Cliff. 169. 2132 Mar- 2132 Marrubium calycum limbis tubo longioribus membranaceis, angulis majoribus rotundatis. Linn. Sp. plant. 817. 2133 Matricaria foliis simplicibus linearilanceolatis seffilibus, pedunculis uniformis. 2134 Ocymum foliis lanceolatis ovatis ferratis racemis verticillatis. Linn. Sp. plant. 834. 2135 Plantago foliis ovatis glabris, scapo angulato spica flosculis distinctis. Linn. Sp. plant. 163. 2136 Potentilla foliis ternatis, caule dichotomo, pedunculis axillaribus. Linn. Sp. plant. 715. 2137 Rosa germinibus ovatis glabris, pedunculis cauleque hispidis, petiolis inermibus fructibus pendulis. Linn. Sp. plant. 705. 2138 Rudbeckia foliis inferioribus semilobatis incisis, caulinis trifidis vel quinquefidis, pedunculis longissimis. 2138 Scabiosa corollulis quadrifidis æqualibus, floribus cernuis, foliis pinuatis, foliolis lanceolatis ferratis. Hort. Cliff. 30. 2140 Serapias bulbis fibrosis, floribus erectis bracteae longioribus. Linn. Sp. plant. 1345. 2141 Scolymus foliis margine incrassatis. Linn. Sp. plant. 1143. 2142 Scorzonera foliis omnibus runcinatis amplexicaulibus. Linn. Sp. plant. 1114. 2143 Sophora foliis pinuatis, foliolis numerosis oblongis villosis, caule herbacco. Linn. Sp. plant. 533. 2144 Statice scapo dichotomo ancipiti foliis lanceolatis mucronatis, floribus aggregatis. Linn. Sp. plant 395. 2145 Teu- 2145 Teucrium foliis ovatis acute incisoserratis glabris, floribus axillaribus geminis caule, erecto. Linn. Sp. plant. 790. 2146 Tithymalus Linariae folio, lunato flore. Mor. H. Reg. Bles. 2147 Valeriana sylvestris major altera, fol. lucido. H. Reg. Par. 2148 Veratrum racemo composito, corollis paten- tissimis. Linn. Sp. plant. 1479. 2149 Veronica racemis lateralibus, foliis lineari lanceolatis pinnato dentatis. Linn. Sp. plant. 17. 2150 Volkameria ramis inermibus. Linn. Zeyl. 231. XVI. A Course of Experiments to ascertain the Specific Buoyancy of Cork in different Waters: The respective Weights and Buoyancy of Salt Water and Fresh Water: And for determining the exact Weight of Human and other Bodies in Fluids. By John Wilkinson, M. D. F. R. S. of London and Gottingen. [Experiments to determine the Specific Buoyancy of Cork in River Water.] Experiment I. Read March 14, 1765. Six cubes of good cork, every one measuring an inch square, as nearly as they could possibly be ascertained, with a gradu-