( *n ) 
Month 
and 
Days. 

f Hours. 
Barom. 
Alt. 
Therm 
Alt. 
Lat. 
Ac 1 . 
. I 
jLat. P‘ Lat./ 
! Davis, E It 07 i, 
Aug. 2 8 
9 
20 
19 
1 2 
19 
1 8 
49-15 
49.2 
9 
21 
18 £ 
29 
9 
2 3 
1 8 £ 
12 
22 
18 
49-3 2 
5 
9 
22 
l 
18 
30 
9 
22 
18 
12' 
J 
22 
18 
49.18 
49.30 
9 
23 
18 
.1 
1 
061. 1. 
9 
24 
1 7 
12 
26 
l 9 
50.2 
9 
28 
21 
2 
9 
29 
21 
12 
29 
21 
9 
30 
22 
bD 
G 
O 
5.1 8 
!Obf. 
Winds. 
Weather. 
14 Obf. 
H 
*4 
*4 
S W. 
Dit. 
w s tv. 
SbW. 
'Dit. 
Is W b s. 
bit. 
Obf. S W. 
Well. 
W S W, 
t Dit. 
Dit. 
Dit. 
Dit. 
SIR, 
3 riling, frelh Gales &Rain. 
— contin. riling, frefh Gales. 
— little fallen, fair Weather, 
-fallen, hazy, frelh Gales. 
-at a Hand, frelh Gales, 
-the fame, hazy. 
-at a Hand, hazy, 
f — contin’. the fame, fqually. 
j — fallen, fair and clear. 
— continues fallen, fair, 
.—fallen, fair and clear. 
I — continues, plea fa n-t. 
I— the fame, fair and clear, 
January 28, 173^. 
These will inform you of my Sentiments concerning Mr. Patrick* % Marine-Baro- 
meter, which I have made ufe of for two Voyages to Hudfonis - Bay in North America 
and by the ftridteft Obfervations, I have always found it to give me timely Notice of 
all bad Weather, and likewife of veerable Winds ; asalfo, certain Intelligence of our 
coming nigh any Ice, with the Quantity we had to go through. It is an Infbrument of 
excellent Ufe, I having continually found myfelf obliged to conform to its more cer- 
tain Information before all other ocular Appearances in the Horizon whatever. Imtifl 
likewile inform you, that when we come in or near Ice we are obliged to keep one of 
our Compares continually moving, there being either fome magnetick Particles in the 
Air, or fome other Quality that hinders them from t raver fing, which makes ourCourfe 
very difficult to diredt •, this happens generally in our entring Hud fin V- S treigh ts and 
Bay, but never fo without being near or amongft Ice. I have enquired of the Com- 
manders, and others that ufe Greenland and D^wPs-Streights, and find great Complaints 
from them of their Compares not traverfing. I have tried the Needle of the Azimuth 
Compafs without the Chart, and find it to traverfe much better, fo that I defign next 
Voyage to have iceing-glafs Charts, as being lighter. I fubmit the Confideration of 
•thefe Things to yourfelf and the Learned, and remain, 
SIR, 
Tour mofl Humble Servant , 
To Mr, Benj. Robins, 
s 2 
Chriftopher Middleton. 
. 
XL Obfervath 
