222 
HINTS TO TRAVELLERS. 
Table XI. gives the number of geographical miles, or minutes of the 
equator, contained in a degree of longitude under each parallel of 
latitude on the supposition of the earth's spheroidal shape with a com¬ 
pression of 
Table XII. is for converting statute into geographical miles. 
Table XIII. is for converting geographical into statute miles. 
Table XIV. contains a comparison of Fahrenheit, Reaumur, and 
Centigrade thermometer scales. 
Table XV. contains a comparison of English and French barometer 
scales to hundredths of an inch. 
Table XVI. contains a comparison of metres and English feet. 
Table XVII. contains a comparison of kilometres and English statute 
miles. 
Table XVIII. contains a comparison of Russian versts and English 
statute miles. 
Table XIX. contains a comparison of kilogrammes and pounds, 
avoirdupois. 
Table XX. contains foreign moneys, with equivalents in British 
currency. 
Table XXI. contains the difference of latitude and departure for the 
course at each degree. It will also be found useful for the con¬ 
version of one measure of length into another, thus: at 61°, the dist. 
and dep. correspond to statute and geographical miles; at 77°, dist. and 
dep. correspond to English and Danish feet; at 68°, dist. and dep. 
correspond to Dutch and English feet; at 66°, dist. and dep. correspond 
to French metres and English yards; at 70°, dist. and dep. correspond 
to toises and fathoms; at 25°, dist. and dep. correspond to English feet and 
arsheens; at 35°, dist. and dep. correspond to versts and geographical 
miles; at 66°, dist. and dep. correspond to brazas and fathoms, or to 
varas and yards. These tables can also be used in solving, approximately, 
cases of right-angled triangles, as also in verifying the results of questions 
of the kind when obtained by logarithms. 
Table XXII. is used to facilitate finding the longitude by moon 
culminating stars; for the manner in which it is used, see p. 200. 
Table XXIII.—This table contains the angles subtended by a 10 ft. 
rod, at distances from 50 to 1500 feet. The angles are given for every 
foot from 50 to 200 feet, for every two feet from 200 to 402 feet, and fo£ 
