Selected quad for the lemma: truth_n

Word A	Word B	Word C	Word D	Occurrence	Frequency Band	MI	MI Band	Prominent
truth_n	advantage_n	commendation_n	great_a	18	3	2.0729	3	false

Text snippets containing the quad

ID	Title	Author	Corrected Date of Publication (TCP Date of Publication)	STC	Words	Pages
A55330	The path-way to perfect sayling shewing briefly the six principall points or grounds of navigation / written by Richard Polter ; whereunto is added A navticall discovrse ... first penned by John Basset ; and now put forth to publike view with some addition by Henry Bond.	Polter, Richard.	1644 (1644)	Wing P2781; ESTC R24059	43,260	60

set downe devide the leafe and so the rest of the leaves vp down into 10 spaces or columes and set downe in every colume as followeth IN the first colume of which Booke set downe the Months and Dayes according to the sequell of them as the time spendeth In the second colume set downe the Houres of time spent in sayling upon the Azimuths used In the third colume set downe the Azimuth of the wind or that wind for the time it was in In the 4 colume set downe the Course which you have kept that is the course on the true Azimuth according to the difference In the 5 colume set downe the quantity of Leagues runne vpon the Azimuth as aforesaid In the 6 colume set downe the degrées of the Pole elevated In the 7 col also the min. if there be any of the Pole elevated In the 8 colume set downe the degrées of Longitude delivered by the time and Latitude as aforesaid In the 9 colume also the minutes if there be any of the Longitude so delivered In the 10 colume set downe your Discourse of things according as you find occasion And to Conclude Every of which inconveniences or rather good knowledge and vnderstanding as aforesaid being thus noted knowne and regarded by him that hath the charge he shall deliver in his Navigations the Ships way he goeth in with all advantages who is worthy to be trusted with any charge and to receive great commendations But to the contrary he that hath the charge not respecting these things as aforesaid he delivereth the Ships way with all nvsurdities and error and to speake the truth he is not worthy to take charge at all but to have an inferiour place which he is more fitter for and thus will I leave delating of the way of Shipping at Sea FINIS AN APPENDIX OR A necessary Discourse concerning the Helisphericall lyne that a Ship describeth upon the Superficies of the Sea being directed by the Magneticall Needle or Compasse Betweene Mr. Geograph and Mr. Nautae Enterloquitors Nautae WEll met Mr. Geograph Geograph Mr. Nautae and so are you also well met I have much desired a long while to have some discourse with you Nau. With me Sir about what I pray you Geo. About that which I suppose you are well séene in I meane the way of a Ship upon the Superficies of the Sea being guided by the Magneticall Needle or Compasse Nautae Sir I am very willing to entertaine your motion and at this present to discourse with you there are diversities of opinions concerning the way motion or mooving of a Ship vpon the Superficies of the Sea which way motion or mooving of a Ship is two-fold principally in Sayling That is first spirall alias Helisphericall or else secondly if is vnder a great Circle the spirall or Helisphericall way is produced by the Ships continuall kéeping of one course the foure Cardinall points excepted But in the way of sayling vnder a great Circle the course is alwayes alterable And whereas the most part of Sea-men will thinks that the demonstration which is delivered by the common plaine Sea-chart because it is eastest done is of all other the most exquisite for the truth thereof Yet is the same indéed ●ld with many grosse errours so that such men must and are often times of necessity greatly deceived of their expectation Therefore for the better vnderstanding of those that are Practitioners in the Art of Navigation we will in this discourse make relation both of the spirall way of a Ship in kéeping alwayes one course with the Solution of such doubts and answering such allegations and objections as may arise thorough want of judgement therein as also of sayling vnder a great Circle with the various and changeable position thereof let me therefore heare your opinion concerning the Rudiments and grounds thereof Geograph First it is necessary for all Practitioners of Navigation to know that the Earth and Water together doe make a round or Sphericall body being enclosed with one converity or superficies and that the earth and the waters are not plaine or flat formed but like vnto a round Spheare or Globe it may thereby easily be vnderstood that the courses extended from place to place cannot be truely described with right lynes especially in a sarre distance because they are Segments of great Circles and are circularly extended from one place to another Hence it followes that the superficies of the Sea being Sphericall not plaine or flat formed that a Ship departing from any assigned place betwéene the Equator and either of the Poles by any one Rhombe or point of the Marriner Compasse the Meridian onely excepted I say that in kéeping one and the same course she maketh her way neither in streight lyns great Circle or lesser Circle but in a spirall lyne composed of Segments of great Circles and returning by the opposite of that Rhombe or point towards the place of her departure she shall make her way in another spirall lyne by reason whereof she cannot according to that course fall with the place of her departure Nautae That the course or way of a Ship is Spirall yet concentrick to the center of the Earth and therefore in Segments of great Circles when it is continued by any one Rhombe or point of the Compasse the East and West North and South onely excepted and that when the Compasse hath no variation is vndoubtedly true But whereas you say that in returning to the place of her departure by the opposite point or Rhombe she sayled out she shall not fall with the place of her departure no current nor any such thing to hinder her you erre very much yet I would willingly heare by what reason you can proove your opinion Geograph If you will grant that a Ship maketh her way in Segments of great Circles then know héereby that all great circles doe in every severall Latitude make severall Angles with the Meridian also those circles that doe in severall Latitudes make like Angles with the Meridian have their severall declinations or greatest distance from the Equator And by reason of these varieties both in Angles and declinations or greatest distances from the Equinoctiall there must also be a variety in the courses made by opposite Angles and yet both spirall For being vnder the Equinoctiall an Azimuth of Northeast toucheth the Hortzon in Latitude 45 deg 0 min. North Latitude 90 deg distant from the place of being under the Eqinoctiall Then comming to the second place in Latitude 45 deg 0 min. North Latitude and intending to returne to the first place vnder the Equinoctiall by the opposite point of Northeast which is Southwest 45 deg 0 min. from the Meridian that great circle or Azimuth intersecteth or cutteth the Equator at néere 54 deg 45 min which distance is lesse to returne to the Equator by the opposite point by 35 deg 15 min. and is short of the place of departure

of the time for this present Concerning the Windes according to Experience DIfferences or diversities of windes I have séene at sea in some calme day in Summer time among divers shipping being of one fléete so that some sixe of them or more have all had contrary windes till the wind was setled Likewise in Summer time I have knowne in places of small distance as at Hambrough the winde at west south west so much winds that we have rid with our top-mast downe and at Lee the very same time the Ships then bound for Hambrough had asmuch wind by report at east north east but both those winds continued not long and betwéene which windes no doubt it was calme for the time Also in Winter time I have séene it often in being at sea the wind being at South southeast much wind and vpon a sudden the wind hath altered to the northwest or north northwest very much wind and so alterations of winds I have likewise séene vpon other points of the Compasse And in sayling toward Head-lands or in sayling about Headlands I have found the wind sometime too large vnto vs and other times againe too scant vnto vs Therefore the wind very difficult to delate vpon my farther reason is this because it is delivered in the Scriptures that the wind bloweth but from whence it commeth or whether it goeth no man knoweth Yet notwithstanding many times in Summer time but especially in winter time when growen stormie windes are setled we may conjecture that they extend farre and in my opinion which opinion I hold for a truth the wind then bloweth in a great circle therefore cannot be paralell to any great circle of that nature my reason is this because great Circles doth crosse themselves at opposite points as in the demonstrature of the compasse is delivered Therefore this delivery confuteth the flat Cards my reason is this because the flat cardes delivereth the windes to blow in paralells according to the lineament thereof Likewise by the Card the wind at East and a Ship going west eyther in the latitude 33 degrées 35 minutes and latitude 60 degrées or in the north latitude 40 degr 15 minut or in what latitude else soever it is said to lead in paralell notwithstanding the Card delivereth the going West to make right angles with the Meridians which is very absurd and that the wind continuing they shall goe west still asore the wind Concerning the Wind by Sphericail working The 1 Example PResuppose a first place which I will call our place of departure in any one degrée of Longitude whatsoever and in the North latitude of 33 degrées 35 minutes in which place the east and west of the Compasse according to the demonstrature is a Tangent vnto this paralell and crosseth the equator at opposite points 90 degrées in longitude Eastward and westward which east and west points in the Equinoctiall kéepe in mind I purpose from this first place as aforesaid to sayle to a second place according to the way of the west vpon the difference which shall be in Longitude from the first place 90 degrées which 90 degrées in these paralells is 75 degrées of a great circle or little more now in this second place which is at this present my place of being I find my selfe delated from the paralell according to the difference where I purpose to deliver the East and west likewise according to the demonstrature being also a Tangent unto this paralell and crosseth the Equator at opposite points according to the former but 90 degrées different in longitude which two demonstrated semicircles doe crosse each other in 24 degrées 15 minutes of Latitude 46 degrées in longitude from the first place and 44 degrees in longitude from the second place Now from my first place of departure the second place doth beare according to the demonstrature of the Compasse west northwest and 5 degrees Northerly vpon which point the two places are distant 73 degrees 15 minutes of a great circle which is a neerer way then the way vpon the West according to the difference as aforesaid by 1 degree 45 minutes And from my second place of being the first place of departure doth beare according to the demonstrature of the Compasse East northeast and 7 degrees northerly vpon which point likewise the two places are distant 73 degrees 15 minutes So by this delivery having continued the Ships caping or course west from the first place of departure to the second place I doe conclude that the wind being constant and stable in blowing from the first place to the second place that at the second place the wind is altered of you two points and 7 degrées to the Northward as aforesaid though it were at East in the first place which delivery in my judgement is the truth But if the wind being at the first place be at East and in sayling to the second place be variable and alterable as the East and west by the demonstrature is variable by crossing the equator according to the difference in Longitude then you shall goe from the first place to the second place west as aforesaid the wind being at east right afore the wind but this way in my judgement is impossible and not the truth A second Example Being in 60 degrées North latitude and in one Meridian of longitude which is my first place which hath his demonstrature of East and west accordingly being a tangent vnto this paralell and in crossing the equator at opposite points after the manner in the first Example from whence I sayle West accordingly to the difference to 90 degrées in longitude which 90 degrées in longitude in these paralells is 45 degrées of a great circle little more which is my second place in which second place I finde my selfe there to be delated from the paralell according to the difference and in which second place likewise I purpose to deliver the east and west according to the former but 90 degrées different in longitude and these two demonstrated semicircles doe crosse each other in 50 degrées of latitude 46 degrées 20 minutes in longitude from the first place and 43 degrées 40 minutes in longitude from the second place So that from my first place of departure the second place doth beare according to the demonstrature of the Compasse Northwest and by west 5 degrées 20 minutes northerly vpon which point the two places are distant 42 degrées 35 minutes of a great Circle which is likewise a néerer way then the way of the west according to the difference as aforesaid 2 degr 25 minutes And from the second place of being the first place of departure doth beare according to the demonstrature of the Compasse northeast and by east and 8 deg 20 minut northerly vpon which point the two places are also distant 42 deg 35 minut of a great circle So that by this delivery being at this second place the wind is altered of me thrée points and