the Dutch service and busy with his literary work. His ‘English-Dutch Dictionary’ has a preface dated Rotterdam, 21 Sept. 1647, and he probably died about 1650.
Hexham's most solid work is his edition of Mercator's ‘Atlas;’ this was a translation into English of the edition by Jodocus Hondius [q. v.], but Hexham made additions of his own, and was further assisted by Hondius's son Henry. The preface is dated Amsterdam, 1 Jan. 1636 ‘stilo veteri,’ and the work is dedicated by Hexham to Charles I; it was published at Amsterdam in 1636–7 (2 vols. fol.), contains many maps and coloured plates, and is the standard edition of Mercator. Another important work by Hexham was his ‘Copious English and Nether-duytch Dictionarie … as also a compendious grammar for the instruction of the learner.’ The English-Dutch part was published at Rotterdam (1648, 4to), and dedicated by Hexham to his friend Sir Bartholomew van Vouw, knt.; the Dutch-English part was not published until 1658 (Rotterdam, 4to), and Hexham's preface has no date. He claims that his is the first dictionary of the kind, and a second edition was published by Daniel Manly, the Dutch-English part in 1672, and the English-Dutch part in 1675 (both Rotterdam, 4to).
Hexham's other works relate to military history and are of original value as dealing with events in which he himself took part. They are: 1. ‘A Historicall Relation of the Famous Siege of the Busse and the Surprising of Wesell …,’ Delft, 1630, 12mo (dedicated to the merchants adventurers living at Delft); a Dutch edition was published in the same year in quarto (Van der Aa, Biographisch Woordenbock, viii. 764–5). 2. ‘A Journall of the taking of Venlo, Roermont, Strale, the memorable Siege of Mastricht, the towne and castle of Limbruch … anno 1632,’ Delft, 1633, 4to; dedicated to his kinsman Francis Morrice, clerk of the king's ordnance, who had married his uncle Jerome Heydon's widow; a Dutch edition was published at 's Gravenhage (1633, fol.) 3. ‘The Principles of the Art Militarie practised in the Warres of the United Netherlands,’ London, 1637, fol.; dedicated on 5 Sept. 1637 to Henry Rich, earl of Holland [q. v.] A second and enlarged edition was published in three parts: the first two at Delft in 1642, folio, and the third at Rotterdam in 1643, folio; Dutch editions appeared at the same time, dedicated to William of Orange and the elector Charles Lewis. 4. ‘A True and Briefe Relation of the famous Siege of Breda,’ Delft, 1637, 4to, dedicated to the Earl of Holland; a Dutch edition was published at The Hague (1638, 4to). 5. ‘An Appendix of the Quarter for the ransoming of Officers … together with the Lawes and Articles of Marshall discipline enacted on the States side,’ Delft, 1637, fol.; another edition, The Hague, 1643, fol. (not in Brit. Mus. Libr.; cf. Cockle, Military Bibliogr. 1900, pp. 108, 109). 6. ‘The Art of Fortification … by Samvell Marolois … augmented by Albert Girard … and translated by Henry Hexham,’ Amsterdam, 1638, fol.; it is dedicated to Sir Henry Vane the elder [q. v.], and is said to be the first work on fortification printed in English in which the subject is treated scientifically (Cockle, p. 111). 7. ‘A True Relation of the Battell of Nieupoort,’ Delft, 1641, fol. 8. ‘An Appendix of Lawes, Articles, and Ordinances established for Marshall Discipline in the service of the … States Generall … translated out of Dutch into English,’ The Hague, 1643, fol.; dedicated to Hexham's cousins, John Heydon and John Harvey. In the preface, dated Delft, 30 Jan. 1643 ‘stilo novo,’ Hexham says he wishes to prevent the pillage committed on both sides during the civil wars by showing the means taken by the Dutch to check it; he also remarks that he had served forty-two years in the wars and had never been wounded.
[Hexham's works in Brit. Mus. Libr.; Cal. State Papers, Dom.; Van der Aa's Biographisch Woordenbock, viii. 764–5; Markham's Fighting Veres, passim, esp. pp. 447–50; M. G. D. Cockle's Bibliography of Military Books up to 1642, 1900; cf. arts. Vere, Sir Francis, and Vere, Horace.]
HICKS, HENRY (1837–1899), geologist, was born on 26 May 1837 at St. David's, Pembrokeshire, where his father, Thomas Hicks, was in practice as a surgeon, his mother, Anne, being a daughter of William Griffiths of Carmarthen. After passing through the cathedral chapter school of that town, he studied medicine at Guy's Hospital, becominga licentiate of the Society of Apothecaries and a member of the Royal College of Surgeons in 1862. He then returned to follow his profession at St. David's. Here he made the acquaintance of John William Salter [q. v.], palæontologist to the Geological Survey, and became inspired with his enthusiasm for discovery in a field which was then almost virgin. Hicks's eyes proved singularly acute in detecting even obscure traces of organisms, and before long he found a fossil in the hitherto barren red flaggy rocks of the Cambrian system near St. David's. This (a 'lingulella') was described by the fellow-workers in a communication to the Geological Society in 1867. Stimulated by its reception and a