On the organs of perspiration in plants / by J. Hedwig -- On the botanical geography of the south-western parts of Europe / by Professor Link -- On the nature and mode of production of the aloes / by I. de Loureiro -- On the genera of orchideae, and their systematic arrangement / by O. Swarz -- Genera and species of the natural order of orchidiae / by O. Swarz -- Botanical observations / by M. Borkhause -- Account of the ule tree, and of other trees producing the elastic gum / by Don V. de Cervantes -- Observations on the genera juglans, fraxinus, and quercus, in the neighbourhood of Lancaster in North America / by H.C. Mühlenberg ; with the remarks of C.L. Willdenow -- Observations on the plant called erica diaboecia, shewing the necesity of referring it to a different genus and order / by Prof. Jussieu -- Botanical observations / by Frederi Ehrhart
