1852.] LIBRARY AND PRINTING PRESS. 19 



the angle between the sun and his track, which opera- 

 tions require no unnecessary exposure. 



" The tables are computed for the zone comprised by 

 the parallels of 70 and 81 north, and extend from the 

 beginning of March to the end of September the sea- 

 son most likely for exploring expeditions ; but should 

 their use be required before or after those periods, the 

 intelligent traveller can readily estimate the allowance 

 he should make, by comparing the differences in the 

 preceding and subsequent columns, and by observing 

 the changes produced by the varying latitudes ; though 

 the reader will perceive, that even a material error in the 

 assumed latitude would be scarcely appreciable in taking 

 up a line of march." F. S. 



This merely evinces the scientific interest in the matter. 

 The compasses themselves were enclosed in neat leathern 

 cases, suspended by a belt (spare pins and needles in- 

 cluded), and the magnetic needle itself so adapted to the 

 card that at noon the compass could be set by the sun to 

 tell the true meridian; and thus, until a fresh opportu- 

 nity was afforded of obtaining further proof of the time 

 by that cheering luminary, the traveller was relieved of 

 the perplexities attending the correction for variations ' 

 amounting to almost half the circle in extent, 142 to 156. 



The libraries furnished to each vessel contained all 

 that was asked, which, aided by private collections, left 

 nothing to be wished for in that department. A very 

 excellent printing press, with full type, was supplied to 

 the leading commands, and was found useful. 



In the comforts and extras for the sick, and for the 

 complete equipment for the collection and preservation 



c 2 



