The strange and dangerous voyage of Captaine Thomas Iames, in his intended discouery of the Northwest Passage into the South Sea VVherein the miseries indured both going, wintering, returning; and the rarities obserued, both philosophicall and mathematicall, are related in this iournall of it. Published by his Maiesties command. To which are added, a plat or card for the sayling in those seas. Diuers little tables of the author's, of the variation of the compasse, &c. VVith an appendix concerning longitude, by Master Henry Gellibrand astronomy reader of Gresham Colledge in London. And an aduise concerning the philosophy of these late discouereyes, by W.W.

THE NAMES OF THE seuerall Instruments, I prouided and bought for this Voyage.

A Quadrant of old seasoned Pearetree-wood, artifici∣ally made: and with all care possible diuided with Diagonals, euen to minutes. It was of foure foote (at least) Semidiameter.

An Equilaterall Triangle of like wood; whose Radius was fiue foote at least; and diuided out of Petiscus Table of Tangents.

A Quadrant of two foote Semid. of like wood: and with like care proiected.

The Sights, Centers, and euery other part of them lookt to, and tryed with conuenient Compasses: to see if they had beene wrongd or altred. And this continually, before they were made vse of.

Staues for taking Altitudes and Distances in the heauens.

A Staffe of seuen foote long; whose Transome was foure foote; diuided into equall parts by way of Diagonals, that all the figures in a Radius of tenne thousand, might be taken out, actually.

Another of sixe foote, neere as conuenient: and in that manner to be vsed.

Masters Gunters Crosse-Staffe.

Three Iacobs Staues, proiected after a new manner: and truly diuided out of the Table of Tangents.

Two of Master Davis Backe-staues: with like care made and deuided.

Of Horizontall Instruments.

Two Semicircles, two foote Semidiameter: of seasoned Pearetree wood: and diuided with Diagonals, to all possible exactnesse.

Sixe Meridian Compasses, ingeniously made; besides some doozens of others, more common.

Foure Needles in square boxes, of sixe inches Diameter: and other sixe, of three inches Diameter.

Moreouer, foure speciall Needles, (which my good friends Master Allen and Master Marre gaue mee) of sixe inches diameter: and toucht curiously, with the best Loade-stone in England.

A Loade-stone to refresh any of these, if occasion were: whose Poles were marked, for feare of mistaking.

A Watch-clocke, of sixe inches Diameter: and another lesser Watch.

A Table euery day Calculated; correspondent to the La∣titude: according to Master Gunters directions in his booke; the better to keepe our Time and our Compasse, to iudge of our Course.

A Chest full of the best and choisest Mathematicall bookes, that could be got for money in England: as likewise Master Hackluite, and Master Purchas: and other books of Iournals and Histories.

Study Instruments, of all sorts.

I caused many small Glasses to be made; whose part of time, I knew to a most insensible thing: and so diuided and appropriated the Logg-line, to them: making vse of Wilbror∣dus, Snellius his numbers of feete answering to a Degree: and approoued of by Master Gunter.

I made a Meridian-line, of 120. yards long: with sixe Plumb-lines hanging in it: some of them being aboue 30. foot high, and the weights hung in a hole in the ground, to a∣voyde winde. And this to take the Sunnes or Moones com∣ming to the Meridian. This line wee verified, by setting it by the Pole it selfe, and by many other wayes.

Two paire of curious Globes; made purposely: the worke∣man being earnestly affected to this Voyage.

This was the manner that we tooke the variation of the Compasse, and that as often as conueniently we could, but diuers of the Tables by negligence of my Boy are lost: but these (I hope) may suffice to giue satisfaction of our care in Nauigation.

Iuly 13^th. 1631.

These 13. Azimuths with the Altitu. Dec. were taken vpon a great piece of Ice, with three Needles together: then the Declination was not equated, the last three set foorth by themselues, prooues the rest: viz. the Azimuth of West with his variation: the Azimuth at due West, And the va∣riation by the Altitude and Azimuth at due West.

These were taken twentie leagues to the Eastward of Sa∣lisbury Iland; and 2. quad. one of 4. another of 2. foote Semid. Semicircle of 2. foote Semid.

La.	Deon.	AL.☉	AZM	F.	T. AZ	F.	Var.
63 01	20 14	39 42	77 50	S	50 11	S	27 39
63 01	20 14	35 33	90 00		62 12	S	27 48
63 01	20 14	34 24	76 30	N	65 07	S	27 23
63 01	20 14	31 24	80 18	N	72 12	S	27 30
63 01	20 14	30 57	78 53	N	73 21	S	27 46
63 01	20 14	29 00	74 50	N	77 28	S	27 42
63 01	20 14	27 10	71 00	N	98 42	N	27 42
63 01	20 14	25 52	68 28	N	96 02	N	27 34
63 01	20 14	25 00	66 40	N	94 16	N	27 36
63 01	20 14	24 00	64 50	N	92 16	N	27 26
63 01	20 14	23 30	64 00	N	91 18	N	27 44
63 01	20 14	22 50	27 35	N	89 58	N	27 33
63 01	20 14	22 30	61 24	N	89 18	N	27 44
			The meane Varon is 27. 36.
The variation of the Altit: and Azim: of West. 27 33.
The variation of the Azimuth of West. 27. 48.
The variation by Azim. at due West. 27. 35.
		The meane of these three is 27 38.

Iuly 22. 1631.

These three Azimuths and Altitudes were taken vpon a piece of Ice the Magneticall Azimuths by the Sunnes shade in the water, the ayre thicke of fogge, that the Sunne gaue no perfect shade otherwayes: 10. leagues West from Mans∣fields Iland.

La.	Decl.	AL. ☉.	AZM	F.	T. AZ	Fr	Var.
60 33	18 25	34 06	90 00	S	64 34	S	25 26
60 33	18 25	31 34	84 48	N	70 08	S	25 04
60 33	18 25	18 25	71 35	N	82 54	N	25 21
				The meane is 25. 17

Iuly 24. 1631.

These 11 Azimuths, were taken vpon a piece of Ice a∣bout the middle of the great Bay: some of them by the shade, and some by the sight of the Sunne in the water, the weather being thicke of fogge.

La.	Decl.	AL. ☉.	AZM	F.	T. AZ	F.	Var.
59 20	17 40	36 44	82 50	S	59 04	S	22 46
59 20	17 40	35 44	83 40	S	61 18	S	22 22
59 20	17 40	33 02	90 00		67 14	S	22 46
59 20	17 40	29 49	84 25	N	73 40	S	21 55
59 20	17 40	27 25	79 50	N	75 10	S	22 00
59 20	17 40	26 27	78 10	N	87 14	S	22 14
59 20	17 40	23 48	72 35	N	84 38	S	22 47
59 20	17 40	21 16	68 47	N	88 38	S	22 35
59 20	17 40	20 40	67 30	N	90 00		22 30
59 20	17 40	20 10	67 00	N	89 00	N	22 12
59 20	17 40	19 34	66 00	N	88 10	N	22 10
			The meane is 22d. 23. 21.

Iuly 31^th. 1631.

These seuerall Azimuths were taken vpon a piece of Ice: 50. leagues off the Wester-shoare.

AL. ☉.	AZ. M	F.	T. AZ	F.	Var.
24 00	76 26	N	99 20	N	22 54	Latitude
23 35	76 00	N	98 38	N	22 38	58 43 43
22 50	75 00	N	97 18	N	22 18
22 05	73 40	N	96 04	N	22 24	Declina.
20 32	71 20	N	93 32	N	22 12	15 43 43
18 40	67 55	N	90 24	N	22 29
18 30	67 30	N	90 02	N	22 32
			The meane is 22. 29. 34.

August 1. 1631.

These seuerall Azimuths were taken vpon a piece of Ice: about 40. leagues off the Wester-shoare.

AL. ☉.	AZ. M	F.	T. AZ	F.	Var.
26 36	83 05	N	104. 36	N	21 31	Latitude
25 24	81 25	N	103. 06	N	21 41	50. 45.
24 26	78 38	N	100, 42	N	22 04
22 30	75 16	N	97 22	N	22 06
21 31	73 50	N	95 42	N	21 5	Declina.
20 10	71 27	N	93 24	N	21 57	15. 25.
18 42	68 40	N	90 58	N	22 18
18 07	67 25	N	89 56	N	22 31
			The meane is 22. 00.

August. 5^th. 1631.

These Azimuths were taken vpon a piece of Ice, and calculated by all the figures of the Canon about 40. leagues off the Wester-shoare.

	AL. ☉.	AZ. M	F.	T. AZ	F.	Var.
	23 14	79 12	N	101. 02	N	21 50
Latitude	22 11	76 40	N	99 12	N	22 32
58. 37.	21 11	75 11	N	97 28	N	22 17
	20 00	73 02	N	95 48	N	22 46
	18 59	71 24	N	93 47	N	22 23
Declina.	17 15	68 35	N	90 53	N	22 18
14. 12.	16 42	67 28	N	90 00		22 32
	15 39	65 32	N	88 18	N	22 46
		The meane is 22. 25. 30.

These obseruations were taken the 10^th. of November: 1631. the Lat. 52. 03. the difference may be conceiued, to grow by reason of the Sunnes low Altitude and Refraction. The others about the Summer Solstice, where difference of Meridians is auoided, and are more exact.

Alt. ☉.	AZ. M.	T. AZ.	Var. West.
G. M.	G. M.	G. M.	G. M.
14 25	42 25	16 11	16 14
14 00	45 25	27 30	17 55
13 15	47 25	29 54	17 31
12 18	48 10	32 33	15 37
12 03	49 20	33 16	16 04
11 41	51 07	34 15	16 52
10 57	53 25	36 04	17 21
9 42	55 25	38 38	16 27
9 15	57 45	40 00	17 14
8 50	58 37	40 52	17 45
	The means is 16. 57. West.