MEMOHANDUM. 



them now possess fire-arms and ammunition, and are skilful 

 in the use of them. Temper and vigilance will be the best 

 preservatives against trivial offences and misunderstandings, 

 which too often end in fatal quarrels ; and true firmness will 

 abandon objects of small importance, where perseverance must 

 entail the necessity of violence ; for it would be a subject of 

 deep regret that an expedition devoted to the noblest purpose, 

 the acquisition of knowledge, should be stained by a single act 

 of hostility. 



(Signed) " F. Beaufort." 

 " Hydrographical Office, llth November 1831.'' 



FIGURES 



TO DENOTE THE FORCE OF THE WIND. 



0 Calm. 



1 Light Air Or just sufficient to give steerage way. 



2 Light Breeze ...7] ^„ ^i,„^ :„ „.u:„v f I to 2 knots. 



3 Gentle Breeze . 



4 Moderate Breeze 



Or that in which a man- 

 of-war, with all sail set, ( 3 to 4 knots 

 and clean full, would go 

 in smooth water from 



5 Fresh Breeze .... 



6 Strong Breeze . . . . , ^j^^^. ^^.^^ ^ 



7 Moderate Gale ..) conditioned man-of- 



8 Fresh Gale 



9 Strong Gale. 



5 to 6 knots. 



Royals, &c. 



Single-reefed topsails 



and top-gall, sails. 

 Double-reefed top- 



war could just carry ( sails, jib, &c. 

 in chase, full and by 



top- 



Treble-reefed 



sails, &c. 

 Close-reefed topsails 

 - and courses. 



10 Whole Gale ... .Or that with which she could scarcely bear close- 



reefed main-topsail and reefed fore-sail. 



11 Storm Or that which would reduce her to storm stay- 



sails. 



12 Hurricane Or that which no canvass could withstand. 



