In the department of Natural History, this district possesses but little which is deserving of particular notice.

Of Birds there are none which can now be considered peculiar to this part, the drainage of the fen lands having entirely banished the great variety of aquatic birds which used, previous to that event, to be found here.

The Plants, indigenous to this district, are very numerous. From a list of several hundreds which are to be found in the neighbourhood, the following interesting ones are selected.

Botanical Names. English Names. Where found.
Arabis thaliana Codded mouse-ear Horncastle
Asplenium adiantum nigrum Black maiden-hair Tattershall
Asplenium ruta muraria Wall-rue Somersby Church
Atropa belladonna Deadly nightshade Miningsby
Borago officinalis Borage West Ashby
Butomus umbellatus Flowering rush Horncastle, Thornton
Carduus marianus Milk thistle Stovin Wood, Kirkstead
Chlora perfoliata Yellow centaury Edlington
Chironia pulchella Small chironia Horncastle
Cistus helianthemum Little sunflower Scrivelsby
Comarum palustre Purple marsh-cinquefoil West Ashby furze-hill
Convallaria majalis fl. pl. May-lily (double flower) Highall Wood
Daphne laureola Spurge laurel Poolham
Digitalis purpurea Purple fox-glove Holbeck, Salmonby,
Drosera longifolia Long leaved sun-dew Tattershall
Drosera rotundifolia Round-leaved sun-dew Tattershall
Empetrum nigrum Blackberried heath Moor
Erica cinerea Fine-leaved heath Ditto
Erica tetralix Cross-leaved heath Ditto
Galeobdolon luteum Yellow nettle Tetford Wood
Gentiana amarella Autumnal gentian Greetham, Hemingby
Gentiana pneumonanthe Calathian violet Tattershall-park, Moor
Malaxis paludosa Marsh tway-blade Moor
Nuphar lutea Yellow water-lily West Ashby
Nymphæa alba White water-lily Ditto
Ophrys apifera Bee orchis Mareham-le-fen
Orchis conopsea Aromatic orchis Thimbleby, Edlington
Orobus tuberosus Wood peas Daw Wood
Oxalis acetosella Wood sorrel Tetford Wood
Paris quadrifolia Herb Paris Ditto
Parnassia palustris Grass of Parnassus Horncastle
Pinguicula vulgaris Butterwort Ditto
Polygonum bistorta Greater bistort Horncastle
Sanicula Europea Sanicle Stovin & Tetford Woods
Saponaria officinalis Soapwort Baumber, Horncastle
Spirea filipendula Dropwort Bridle road to Hemingby
Turritis hirsuta Hairy tower mustard High Tointon
Vaccinium oxycoccus Cranberry plant Moor

Minerals occur rarely in this part, and in very small quantities. Lumps of sulphuret of iron in the oolite stratum; earthy oxide of iron and a singular blue pulverulent mineral, which is a carbonate of iron containing some earthy impurities, in a valley at Salmonby; and a stalactitic oxide of iron in the ferruginous gravel; comprise all the varieties which have yet been found.

Although Organic Remains are to be found in some parts of this district in considerable quantities, yet they do not include many varieties. The following list of those now in the possession of the author, comprises one of almost every species which has yet been found.

From the Chalk Stratum. No 2.

Teeth of the Squalus or Shark.

An Impression of a Vertebræ.

A Terebratula subundata.