158 MAPS AND THEIR MAKERS 



beautiful and satisfactory of these was the One Inch sheet of 

 Killarney, for which no less than thirteen separate printings 

 were employed, a fact which, even in those days of relatively 

 cheap costs, prohibited its general adoption. In this sheet, all 

 the earlier methods were combined: contours in black dotted 

 lines, hachures in brown, hill shading by heavier hachures on 

 the south-eastern slopes (giving the effect of lighting from the 

 north-west comer of the map), and delicate layer colouring. 

 The sheet gives a most expressive representation of the model- 

 ling of the relief, even in the less elevated areas. 



In the interval between the two wars, it became necessary, 

 owing to the state of the old copper plates, to re-draw the One 

 Inch afresh, and the opportunity was taken to introduce several 

 improvements.^ An entirely new style of lettering, based on that 

 of Trajan's Column, was introduced, adding much to the 

 legibility and appearance of the map. This Fifth (Relief) 

 edition also incorporated in a modified form some of the 

 features of the Killarney sheet: relief was shown by contours in 

 brown, hachures in orange, hill-shading in grey with layers 

 in tints of buff. Again, the effect of modelling is very expressive, 

 but, unfortunately, it was considered that this style was not 

 popular with the public and the Relief edition was abandoned 

 for a less elaborate style. The present Sixth (New Popular) 

 edition follows closely the Fifth, though relief is shown by 

 contours only, conspicuous in brown. The sheets have been 

 cleared of some detail, including the black symbol which 

 differentiated between woods of deciduous and coniferous 

 trees. 



In the course of 150 years, the sheet lines have undergone 

 considerable changes, which have been related to the projec- 

 tion and central meridians employed. In the early days of the 

 First edition, the One Inch sheets of northern and southern 

 England had separate central meridians, and the large-scale 

 county plans were also drawn on their own meridians; con- 

 sequently it was impossible to fit sheets of adjoining counties 

 together. The size of the sheets has also varied from time to 

 time. With the re-calculation of the whole survey on one pro- 



^Previously, for each revision, the outline of the engraved copper plates, 

 after correction, had been transferred to stone or zinc for reproduction. 



