Strangalia armata Necrophorus humator Polydrusus pterygomalis N. ruspator N. mortuorum Strophosomus coryli Aphodius rufipes HEMIPTERA-HETEROPTERA (in Fulsby Wood). Miris lævigatus Leptopterna ferrugata Calocoris roseomaculatus Œtorhinus angulatus Orthotylus scotti C. bipunctatus Nabis lativentris (In Tumby Wood.) Those marked * are new to Lincolnshire. *Piezodorus lituratus (abundant *Onychumenus decolor on gorse) Stygnus rusticus (at roots of *Psallus alnicola (on birch) heather) *Dictyonota strichnocera (on Asciodema obsoletum gorse) Miris calcaratus Lygus viridis (on birch) Orthotylus ericetorum (abundant on heather) SPIDERS. Anyphæna accentuata Meta segmentata Epeira gibbosa (a first record) Epeira marmorea (doubtful, not yet recorded in Britain) Dictyna arundinacea Xysticus pini Diœa dorsata (a first record) Epeira sollers Epeira quadrata Linyphia triangularis E. scalaris Theridion varians CHAPTER VII. GEOLOGICAL NOTES. In a county like Lincolnshire, mainly agricultural, in which the operations of man are, for the most part, confined to the earth’s crust, in ploughing and sowing, and, as some one has said, in “tickling” the earth’s surface into fertility,—in such a county we are not led ordinarily to explore the inner bowels of the world; as is necessary in mining districts such as certain parts of Yorkshire, Durham, Cornwall and elsewhere. Yet, with regard to our knowledge of its geological features, Woodhall may be said to compare favourably with a large majority of places. With one exception {84a} it is the spot, _par excellence_, in this part of the kingdom, where the earth’s hidden resources have been tapped, and tapped to considerable purpose, in the unique commodity for which it is famed—its mineral water. The book of Nature, so often “sealed,” has here been opened and its contents indexed. We have in the strata of the Woodhall well sundry chapters in the earth’s past history unfolded, at least to the initiated. The writer is not going to attempt here a systematic disquisition on a subject so abstruse (for which, indeed, he is not qualified), beyond touching upon some of its more salient, or more interesting features. The geological records of the Woodhall well have already been given {84b} in the very concise form in which they have been preserved for us. Whether they are to be entirely depended upon is questionable, but we may here repeat them:—Gravel and boulder clay, 10 feet; Kimeridge and Oxford clays, 350; Kellaways rock, blue clays, cornbrash, limestone, great oolite, clay and limestone, upper Estuarine clay, 140; Lincolnshire oolite, and Northampton sand, 140;