_Cornwall and Devonshire._--None. _Somersetshire._--Hinton, Larkhall, Hartlip, St. Audries, Weston-super-Mare, Chedzoy, Freshford. _Gloucestershire._--Gloucester, Barnwood, Beckford, Stroud, Tewkesbury. _Dorsetshire._--Bridport, Portland Fissure. _Hampshire._--Gale Bay, Newton. _Wiltshire._--Christian Malford, Fisherton, Milford Hill, near Salisbury. _Berkshire._--Maidenhead, Taplow, Reading, Hurley Bottom. _Oxfordshire._--Yarnton, Bed of the Cherwell, City of Oxford, Wytham, Culham. _Essex._--Lexden, Orford, Hedingham, Lamarsh, Isle of Dogs, Walton-on-the-Naze, Ilford (the finest specimen, see p. 187), Wenden, Harwich, Colchester, Ballingdon, Walthamstow. _Hertfordshire._--Camp's Hill. _Sussex._--Bracklesham Bay, Brighton, Lewes, Valley of Arun, Pagham. _Suffolk._--Ipswich, Hoxne. _Norfolk._--Bacton, Cromer, Yarmouth. _Cambridge._--Barrington, Barnwell, Chesterton, Great Shelford, Barton, Westwick Hall. _Huntingdonshire._--Huntingdon, St. Neots. _Bedfordshire._--Leighton Buzzard. _Middlesex._--At London, under various streets, etc., viz., St. James's Square, Pall Mall, Kensington, Battersea, Hammersmith, and, recently (1892), in Endsleigh Street. Turnham Green. In the bed of the Thames at Millbank, Brentford, Kew, Acton, Clapton, etc. Kingsland. _Surrey._--Wellington, Tooting, Peckham, Dorking, Peasemarsh, near Guildford. _Kent._--Crayford, Erith, Dartford, Aylesford, Hartlip, Otterham, Isle of Sheppey, Broughton Fissure, Medway, Sittingbourne, Newington, Green Street Green, Bromley, Whitstable. _Buckinghamshire._--Fenny Stratford. _Northamptonshire._--Oundle, Kettering, Northampton. _Warwickshire._--Rugby, Wellesborne, Lawford, Bromwich Hill, Halston, Newnam. _Worcestershire._--Stour Valley, Droitwich, Banks of Avon, Fladbury, Malvern. _Leicestershire._--Kirby Park. _Staffordshire._--Copen Hall, Trentham. _Cheshire._--Northwich. _Lincolnshire._--Spalding. _Yorkshire._--Whitby, Aldborough, Gristhorpe Bay, Harswell, Leeds, Bielbecks, Brandsburton, Middleton, Overton, Alnwick, Hornsea. _Herefordshire._--Kingsland. Scotland. _Ayrshire._--Kilmaurs. Between Edinburgh and Falkirk. Chapel Hall in Lanarkshire, and Bishopbriggs. At Clifton Hall. Ireland. _Cavan._--Belturbet. _Antrim._--Corncastle. _Waterford._--Near Whitechurch (but somewhat doubtful). 2. FROM CAVERNS. _Devonshire._--Kent's Cavern, Oreston, Beach Cave, Brixham. _Somerset._--Hutton Cave, and a cave near Wells, Wookey Hole, Bleadon Cave, Box Hill, near Bath, Durdham Down, Sandford Hill. _Kent._--In Boughton Cave, near Maidstone. _Nottinghamshire._--In Church Hole. _Derbyshire._--In Cresswell Crags, Robin Hood Cave, Church Hole. _Glamorganshire._--In Long Hole, Spritsail Tor, Paviland. _Caermarthen._--In Coygan Cave. _Waterford._--In Shandon Cave. APPENDIX IV. LITERATURE.