432 
INDEX. 
to set the theodolite in meridian pre¬ 
paratory to taking the observation, 
by meridian passage of pole star, 195 ; 
by high and low stars, 195 ; by meri¬ 
dian passage of any star, 196 ; by stars 
east and west of meridian, 196 ; the 
observation and computation, 197-200; 
to correct for level error, 201; table 
for use with this method, 278; expla¬ 
nation, 222 
Moon’s equatorial parallax, correction of 
the, for figure of the earth, table, 424 ; 
explanation of table, 230 
Names of places should be clearly 
written by travellers, 81 
National Physical Laboratory, address 
of, charges for testing various instru¬ 
ments at, address in London for for¬ 
warding instruments to, 8-9 
Natural cosines, table, 407-421; expla¬ 
nation of table, 229 
Natural scale of map, how to find, 73 
Nautical almanacs to be taken, 7 
Norie’s Navigation, 6 
North and south stars, latitude bv, 146 
Note-books for travellers, 6 
Observations for latitude, 139-149 ; for 
time and longitude, 150-203 ; for 
bearings and error of compass, 204- 
208 
Occultation of a star, longitude by, 
general remarks, 168-169 ; Major 
Grant’s rough method of predicting, 
with diagrams, 171-180; example of 
finding longitude by, 181-182 
Orienting the plane table, different 
methods, 99-105 
Pace, average length of a man’s, 55 
Pacing, measuring distance by, 55, 80 j 
Packing instruments for travelling, direc¬ 
tions for, 9 
Paint-brushes, 6 
Paints for maps, 6 
Paper, how to fix fresh paper on plane- 
table in surveying, 105 
Parallax, adjustment for, in theodolite, 26 
Parallax in altitude of a planet, table, 
424 ; explanation of table, 230 
Parallaxes in declination and right ascen¬ 
sion, Major Grant’s method of ascer¬ 
taining, for predicting occupations, 
172-173 
Pedometer, remarks on, 8 
Pencils, lead, recommended, 6 
Penknives, 6 
Pens, drawing, recommended, 6 
Photographic surveying, article, with 
two illustrations, bv J. Bridges Lee, 
123-132 
Plane-table, 8 ; description of, with 
illustration, 40-42; article on sur¬ 
veying with the, 97-109 
Plane trigonometry, formulae and ex¬ 
amples suited to surveying purposes, 
46-51 
Planet, parallax in altitude of a, table, 
424; explanation of table, 230 
Plotting survey made with Bridges 
Lee’s photographic surveying camera, 
130 
Pocket, or box sextant, description and 
adjustments of, with illustration, 20-22 
Pocket compass, form recommended, 3 ; 
description of, with illustration, 11 
Pocket level (Abney’s), 8 
Pole, latitude by meridian altitude of 
star above and below the, how to find,' 
141 
Pole star, latitude by, 141 
Position on plane-table, different methods 
of finding, 99-105 
Preliminary Remarks, 1 
Prismatic compass recommended, 3; 
charges for testing at the National 
Physical Laboratory, 8; description 
