More recently I conducted the members of the Lincolnshire Natural History Union through the district, in the month of August, and the following is a list of their chief “finds”; Hieracium Boreale (hawkweed), Lysimachia Vulgaris (yellow loose strife), Melampyrum Pratense (yellow-cow wheat), Tycopus Europeus (gipsy-wort), Solidago Virgaurea (golden rod), Malva Moschata (musk mallow), also a white variety of the common mallow (Malva Sylvestris), the two cresses, Lepidium Smithii and L. Campestre, Sparganium Simplex (simple bur-reed) the mints (Mentha Sativa, and M. Arvensis), Lythrum Salicaria (purple loosestrife), Geranium Columbinum (long-stalked cranesbill), Scutellaria Galericulata (skull-cap), Polygonum Hydropiper (water pepper), Lysimachia Nemorum (yellow pimpernel), Rhamnus Frangula (buckthorn), Gentiana Pneumonantha (blue gentian), Erica, Cinerea (heath), Malva Rotundifolia (round-leaved mallow), Marrubium Vulgare (white horehound), Calamintha Acinos (basil thyme), Eriophorum Angustifolium (cotton grass), Narthekium Ossifragum (bog asphodel), Galeopsis Bifida (hemp nettle), Senecio Sylvaticus (ragwort), three St. John’s worts, viz. Hypericum Pulchrum, H. Quaodrangulum, and H. Perforatum, Spergula Arvensis (corn spurrey), Saponaria Officinalis (common soap wort), Drosera Rotundifolia (round-leaved sundew), D. Intermedia (intermediate variety), Epilobium Macrocarpum (long-fruited willow herb), E. Parviflorum (small flowered do.). E. Palustre (marsh do.), Circœa Lutetiana (enchanter’s night-shade), Pimpinella Magna (greater burnet saxifrage), Valeriana Sambucifolia (elder-leaved valerian), Solidago Virgaunea (golden rod), Gnaphalium Sylvaticum (high land cudwort), Hieracium Umbellatum (narrow-leaved hawk weed), Alnus Glutinosa (common alder), Juncus Acutiflorus (sharp-flowered rush), Anagallis Pallida (pale-coloured pimpernel), Pedicularitis Sylvatica (dwarf red rattle), Pinguicola Vulgaris (common butter-wort), Viola Flavicornis, also called V. Ericetorum (yellow-horned violet). {31} The Cichorium (succory) and Parnassia Palustris (grass of Parnassus) are found in the neighbourhood. The Myrica (“Gale” or bog-myrtle) is very abundant, and a useful preventive against the moth if placed in wardrobes or drawers. Like the Osmunda, the Pinguicola (butterwort), appears to be now extinct, owing either to drainage or to the ever-offending collector. Another interesting plant which at present is not to be found, though it may at any time recur, {32} is the Holy thistle, or Mary thistle (Carduus Marianus). Formerly plentiful, a mile away from the Spa, about the ruins of Kirkstead Abbey, it has been of late years entirely stubbed up by successive tenants of the farm. There is one locality, about three miles distant, to which specimens were transplanted a few years ago, and where it still survives. It also grew not far from the church of Old Woodhall, but there also farmers’ operations have exterminated it. Called the “Milk” or “St.