40G Proceedings of the Royal Irish Academy. 



other works, but to cite these would confuse rather than widen our knowledge. 

 I use the large reproductions of Haldingham in 1280, of Fra Mauro, 1459, and 

 Eibero, 1529, copies of which Dublin readers can find in the Library of 

 Trinity College. The later maps (after 1570J I use, but only to elucidate 

 the older maps ; but- the crowd of coast-names on the Elizabethan maps might 

 be studied in a separate paper to the great advantage of Irish topography. 

 Besides these, I use a few originals not found in the facsimiles, such as the 

 important one of Baptist Agnesi, so similar to the Upsal map. In my copies 

 herewith, I omit the networks of compass-lines and the wind-roses, and 

 merely give careful enlarged outlines and the names. The British maps are 

 (apart from printed ones of the period) chiefly from the Hardiman collection 

 in Trinity College, Dublin, with two of Laurence Nowell, Dean of Lichfield, 

 who died in 1576.' 



I will only very briefly give a few notes on the makers of the early 

 portolans here used.^ — Giovanni de Caeignano was rector of St. Mark's, 

 Genoa, 1306-1344; his maps date apparently a few years later, about 1310.^ 

 He stands alone in not exaggerating Clew Bay or eliminating Dublin Bay, 

 but he makes Scotland lean over to the west (as the Ptolemy maps make it 

 bend to the east) at right angles to England. Peeeinus Vesconte, a 

 Venetian, was making maps at Florence about 1327. Petrus Vesconte, a 

 .Genoese, who also resided in Venice (perhaps the same person), has left us 

 the earliest dated map, which contains his only record — "-Petrus Vesconte, 

 of Janua, at Florence, 1311" ; it is in the state archives of the latter city. 

 The map has " Ybernia," but no legible coast-names. (Periphis, p. 17, fig. 6.) 

 Angelino Dulcert, Dulceti or Dalaorto. His personality seems doubtful ; 

 some think him a Majorcan or Catalonian. The Dulceti were Genoese.* 

 His map, dated 1339, is remarkable as one of the three earliest legible 

 records, with full details of Ireland. Guglielmo Soleei, of Majorca, left 



■| British Museum, Donation A 18, f. 97, and ff. 101, 103. 



- Kretschmer gives a bibliography and full particulars about the map-makers in " Die Italienischen 

 Portolane des Mittelalters " (1902, Inst, f Meereskund Univ. Berlin), pp. 104-148, for 75 portolans. 



"The inscription runs— " Presbyter Johannes, rector sancti Marci de portu Janue, me fecit" 

 Giovanne de Carignano, Rector of St. Mark's, Genoa, in 1306, died 1344. 



Issr"'^^ mappemonde d'Angelino Dulcert" (E. T. Hamy, liulletm de Geog. hist, et descrip. Paris, 

 1886, 1887, and "Lesoriginesdelacartographiedel'Europe,"t4ia:., 1888), also, "In Northern Mists," 

 Nansen (transl. A Chater), vol ii., p. 226. There are outlines of his work in Proc. R.I. A., xxx (C), 

 llate XX. The maps are inscribed, " Hoc opus fecit Angellinus de Dalaorto ano domini mcecxxv 

 (or xxx) de mense martu composuit hoc," and " Hoc opus fecit Angelino Dulcert ano mcecxxxviiii 

 f ™^"_5e "ugusti in civitate maioricarum." Besides the better-known map of 1339, there is the map 



Mfi'' °1 °- ^'^'"''^ ^^'^^ ^^'"' P"^"^'^^<1 ii several works (e.g., "In Northern Mists," ii , 



P- -ib). Its date 13 indistinct, being either mcecxxv, or mcocxxx. The later map is Majorcan; 

 some have supposed it to be a copy of an original by Dalaorto. See also Konrad Kretschmer, " Die 

 Italienischen Portolane," pp. 117-118. 



