CuO 
dents. Ordinary and Extraordinary, of the Tides ; as, their 
preeife dine of Ebbing and Flowing in Rivers, at Promonto- * 
rks or Capes 3 which way their Current runs , what Perpen- 
dicular diftance there is between the bigheft Tide and low* 
eft Ebb 3 during the Spring' Tides and Neap* Tides 3 what 
day of the Moons age, and what times of the year, the bigheft: 
and loweft Tides fall out : And all other confrderaMe Acci- 
dents, they can obfervein the Tides, cheifly neer Ports, and 
about Hands , as in St. Helena s Hand , and the three Riyers 
there, at the Berntodas 8 (c» 
4. To make Plotts and Draughts of profpeft of 
Coafts, Promontories , Iflandsand Ports s marking the Bear- 
ings and Diftances, as neer as they can. 
5, To found and marke the Depths of Goafts and Ports, 
and fuch other places nere the (hoar, as they (hall think 
fit 
6 - To take notice of the Nature of the Ground at the 
bottom of the Sea , in all Soundings, whether it be Clay, 
Sand, Rock , 
y. To keep a Regifter of all changes of Wind and 
Weather at all houres, by night and by day , (hewing the 
point the Wind blows from, whether ftrong or weak : The 
Rains, Hail, Snow and the like, the preeife times of their bc« 
ginnings and continuance, efpecially Hurricahs and Spouts 
above all to take epa& care to obferve the Trade-Wines 5 a- 
bout what degrees of Latitude and Longitude they firft begin, 
when and when they ceafe, or change , or grow ftronger or 
weaker, and how much 3 as near and exa& as may be. 
8. To obferve and record all Extraordinary Meteor / 
Lightnings, Thunders, Ignesfatui 9 Comets, &e. marking 
Sill the places and times of their appearing , continu- 
ance,, See. 
9 - To carry with them good Scales, and Glaffe-Violls of 
* or With very narrow mouths, which are to be fill’d 
with Sea- waters® different degrees of Latitude , as often as 
' they 
