The mariners magazine, or, Sturmy's mathematical and practical arts containing the description and use of the scale of scales, it being a mathematical ruler, that resolves most mathematical conclusions, and likewise the making and use of the crostaff, quadrant, and the quadrat, nocturnals, and other most useful instruments for all artists and navigators : the art of navigation, resolved geometrically, instrumentally, and by calculation, and by that late excellent invention of logarithms, in the three principal kinds of sailing : with new tables of the longitude and latitude of the most eminent places ... : together with a discourse of the practick part of navigation ..., a new way of surveying land ..., the art of gauging all sorts of vessels ..., the art of dialling by a gnomical scale ... : whereunto is annexed, an abridgment of the penalties and forfeitures, by acts of parliaments appointed, relating to the customs and navigation : also a compendium of fortification, both geometrically and instrumentally / by Capt. Samuel Sturmy.
About this Item
Title
The mariners magazine, or, Sturmy's mathematical and practical arts containing the description and use of the scale of scales, it being a mathematical ruler, that resolves most mathematical conclusions, and likewise the making and use of the crostaff, quadrant, and the quadrat, nocturnals, and other most useful instruments for all artists and navigators : the art of navigation, resolved geometrically, instrumentally, and by calculation, and by that late excellent invention of logarithms, in the three principal kinds of sailing : with new tables of the longitude and latitude of the most eminent places ... : together with a discourse of the practick part of navigation ..., a new way of surveying land ..., the art of gauging all sorts of vessels ..., the art of dialling by a gnomical scale ... : whereunto is annexed, an abridgment of the penalties and forfeitures, by acts of parliaments appointed, relating to the customs and navigation : also a compendium of fortification, both geometrically and instrumentally / by Capt. Samuel Sturmy.
Author
Sturmy, Samuel, 1633-1669.
Publication
London :: Printed by E. Cotes for G. Hurlock, W. Fisher, E. Thomas, and D. Page ...,
1669.
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This text has been selected for inclusion in the EEBO-TCP: Navigations collection, funded by the National Endowment for the Humanities.
Link to this Item
http://name.umdl.umich.edu/A61915.0001.001
Cite this Item
"The mariners magazine, or, Sturmy's mathematical and practical arts containing the description and use of the scale of scales, it being a mathematical ruler, that resolves most mathematical conclusions, and likewise the making and use of the crostaff, quadrant, and the quadrat, nocturnals, and other most useful instruments for all artists and navigators : the art of navigation, resolved geometrically, instrumentally, and by calculation, and by that late excellent invention of logarithms, in the three principal kinds of sailing : with new tables of the longitude and latitude of the most eminent places ... : together with a discourse of the practick part of navigation ..., a new way of surveying land ..., the art of gauging all sorts of vessels ..., the art of dialling by a gnomical scale ... : whereunto is annexed, an abridgment of the penalties and forfeitures, by acts of parliaments appointed, relating to the customs and navigation : also a compendium of fortification, both geometrically and instrumentally / by Capt. Samuel Sturmy." In the digital collection Early English Books Online 2. https://name.umdl.umich.edu/A61915.0001.001. University of Michigan Library Digital Collections. Accessed June 15, 2024.
Pages
A SECANT.
A Table of Secants to every Degree of the Quadrant.
De
Sec.
De
Sec.
De
Sec.
De
Sec.
De
Secants.
1
1000
19
1057
38
1269
56
1788
74
3627
2
1000
20
1064
39
1286
57
1836
75
3863
3
1001
21
1071
40
1305
58
1887
76
4133
4
1002
22
1078
41
1325
59
1941
77
4445
5
1003
23
1086
42
1345
60
2000
78
4809
6
1005
24
1094
43
1367
61
2062
79
5240
7
1007
25
1103
44
1390
62
2130
80
5758
8
1009
26
1112
45
1414
63
2202
81
6392
9
1012
27
1122
46
1439
64
2281
82
7185
10
1015
28
1132
47
1466
65
2366
83
8205
11
1018
29
1143
48
1494
66
2458
84
9566
12
1022
30
1154
49
1524
67
2559
85
11473
13
1026
31
1166
50
1555
68
2669
86
14335
14
1030
32
1179
51
1589
69
2790
87
19107
15
1035
33
1192
52
1624
70
2923
88
28653
16
1040
34
1206
53
1661
71
3071
89
57298
17
1045
35
1220
54
1701
72
3236
90
0000000
18
1051
36
1228
55
1743
73
3420
Infinite.
37
1252
A Secant Line is drawn always from the Center of the Circle, until it cut the Tangent Line; as A G in the foregoing Diagram cuts the Tangent of the Arch BC 60 Degrees in G: so is AG the Secant of 60 Degrees, which in this Table of Se∣cants is found 2000 equal parts; therefore take off such parts as are in proportion to AB 200, it shall reach from A to G for the Secant of 60 Degrees, and AH is the Complement-Se∣cant, or Secant of the Arch 8 C, 30 Degrees, which in this Table of Secants is found to be 1154; therefore take with your Compas∣ses, or other Instruments, 115 equal parts, and it shall reach from A towards G for the Secant of 30 Degrees, as you may find by the Scale in the Diagram.
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