1827. Natural History of the vicinity of Stockton-on-Tees, by John Hogg, A.M.
1829. Flora of Berwick-upon-Tweed, by Dr. George Johnston.
1831. Flora of Northumberland and Durham, by N.J. Winch; from the Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-upon-Tyne. Quarto; an appendix in 1836.
1835. New Botanist's Guide to the localities of the rarer Plants of Britain on the plan of Turner and Dillwyn's Botanist's Guide, by H.C. Watson.
1847. Cybele Britannica; or British Plants and their Geographical Relations, by H.C. Watson. Vol. 2, 1849; vol. 3, 1852; vol. 4, 1859; supplement, 1860.
1848. Transactions of the Tyneside Naturalists' Field Club began.
1853. Natural History of the Eastern Borders: part 1, Botany, by Dr. G. Johnston.
The first three of these works contain only the mention of a few scattered stations. The history of Wallis contains a greater number, but botany was not the author's forte, and he registered a considerable number of species in error. During the first thirty years of the century the botany of the two counties was very thoroughly searched out by Winch and his colleagues, and the Flora of 1831 contains a full resumè of the result of their labours. They did their work so well that the number of species which have been added to the list since that date is very inconsiderable; and the essay of 1825 shows, for that time, a remarkable appreciation of the influences which regulate and modify the distribution of species. The Cybele Britannica is an elaborate work in four volumes, treating of the distribution of plants within the bounds of Britain in the fullest detail. Of the herbaria which we have consulted in the preparation of our enumeration that of Winch is the most extensive, and affords a full opportunity of
