274. _Cross-legged Effigies._--What is the date of the _latest_ cross-legged effigy known, and is the person commemorated known to have been connected with the Crusades? Is there any cross-legged memorial effigy with the hands in the attitude of drawing the sword of so late a date as the fourteenth century? Dugdale and others say that persons pledged to join a crusade were marked with the cross. How was this ceremony performed? W. H. K. 275. _Verses accidentally occur in Classical Prose often._--Has a collection of these ever been made? (I have a "Note" on the subject, but do not send it, feeling sure I must have been anticipated.) A. A. D. 276. _Count Maurice Tanner de Lacy._--From what family connexion did "Count Maurice Tanner de Lacy," general in the Austrian service, and who died in 1819, take the name of "Tanner?" What relative was General M. de Lacy to Joseph Francis Maurice Count de Lacy, field marshal under Joseph II., and who distinguished himself so highly during the Seven Years' War; also who was mother of the latter? Ποθεω. 277. _The Sinaitic Inscriptions._--Your correspondent E. H. D. D. (Vol. iv., p. 332.) says that the Sinaitic inscriptions have been already deciphered. May I ask, by whom? T. D. 278. _Portrait of Dr. Bray._--Is any authentic portrait in existence of Dr. Bray, to whom the venerable Society for the Propagation of the Gospel owes its origin? C. 279. _Peter Plancius' Map of the World._--In _M. Blundevill his Exercises, containing Eight Treatises_, 6th edition, 4to., 1622, one of the eight is described thus: Item. A plaine and full description of Peter Plancius his universall Mappe lately set forth in the yeare of our Lord 1592, containing more places newly found, as well in the East and West Indies, as also towards the North Pole, which no other Mappe heretofore hath." Where is this Peter Plancius' map to be found? J. O. M. 280. _Derivation of Theodolite._--Can any of your correspondents give the derivation of _theodolite_? I fear that θεάομαι δολος might be considered a libel. J. S. WOOD.