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HINTS TO TRAVELLERS. 
1. Scientific Outfit.* 
Sextant for regular work —• 
A sextant of 6-inch radius, light in weight, by a first-rate maker, 
divided on platinum or silver, to ten minutes, to read with vernier 
to ten seconds. It should have a moveable ground-glass screen 
in front of the reading-off lens, to tone down a glaring light. The 
handle must be large and convenient; the box capacious enough 
to hold the instrument with its index clamped to any part of the 
arc, and the receptacle for the inverting telescope long enough to 
allow of it being put into the box when set at focus. 
Sextant for detached expeditions , and for taking 'altitudes when the other 
sextant is in use for lunars — 
A sextant of 3-inch radius, graduated to 20', to read with vernier to 
20", in a leather case, fitted to slip on to a leather belt, to be worn 
round the waist, when required. 
Mercurial Artificial Horizon—- 
One of the common form with folding roof, by a good maker, or the 
form devised by the late Captain George, r.n. Beserve: an iron 
bottle of pure mercury. 
Watches — 
A keyless silver half-chronometer watch, not too heavy, with an open 
face and a second hand. The hands should be of black steel, long 
enough to cover the divisions. The divisions should be very clear 
and distinct. See that the second hand falls everywhere truly upon 
the divisions. Beserve: at least two more good watches; these 
should be rolled up separately, each in a loosely-wrapped parcel of 
dry clothes, and they will never come to harm; they should be 
labelled, and rarely opened. The immediate envelope should be 
* It will be. understood that the necessity for taking all the articles herein 
enumerated will depend upon the nature of the journey, 
