32 AGRICULTURAL ENGINEERING 



as conventional topographic signs. It is not sufficient, how- 

 ever, that these conventional signs alone be used, but should 

 be supplemented with notes. 



Lettering. Maps made by professional draftsmen or 

 engineers have all notes and titles neatly lettered in. The 

 ability to do lettering quickly and neatly is a part of the train- 

 ing of the engineer. Letters for titles are often made by the 



a be defghijklmnop qrstuvwxyz 



133456 7 8 9O 



A BCDErGHIJKLMNOPQRS TU V W X YZ 

 Inclined Lettering, for Description- 



abed ef g hljklmnopqr stuvw xyz 



ABCDEF GHIJKLMNOPQR5TUVWXYZ 



1234567890 

 Upright Lettering , for Captions. 



Fig. 14. Good styles of free-hand lettering. 



use of instruments, but on most maps the letters must be 

 made with a form of the writing pen, the only instruments 

 used being the T square and triangle with which the guide 

 lines are drawn, to assist in making the letters even and of 

 uniform height. While it is not best to attempt to duplicate 

 the work of the professional engineer, it is desirable that all 

 maps be of as neat appearance as practical; and few things 

 add to or detract from the appearance of a map quite so much 

 as lettering. The best lettering is that which is simple and 

 easily and quickly made. A good alphabet is furnished in 

 Fig. 14, and is a form of lettering now in general use. The 

 beginner should first pencil the letters on the map; and when 



