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A26664 A short account, of the nature and use of maps as also some short discourses of the properties of the earth, and of the several inhabitants thereof : to which is subjoin'd, A catalogue of the factories and places now in possession of the English, French, Dutch, Spaniards, Portegueze and Danes, both in the East and West-Indies. Alingham, William, fl. 1694-1710. 1698 (1698) Wing A930; ESTC R19265 18,438 64

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a Map off is in the Latitude of 2 Degrees 20 Minutes and Longitude of 14 Degrees 40 Minutes Here I begin and count from the Bottom of the Map upwards on each side 2 Degrees 20 Minutes and from those two points draw a blin'd line through the Map this done I count from the left hand side of the Map towards the right both at Top and Bottom 14 Degrees 40 Minutes and from these two Points draw an obscure Line also quite through the Map the point where these two lines cross each other is the true point where such place ought to be set after the same manner proceed to incert all the boundaries and principle places within the Map by having their Longitudes and Latitudes And here Note That the more Latitudes and Longitudes of the Boundaries you take the more exact and true will your Map be limited As for places that lie in great North Latitude suppose betwixt 50 and 60 deg there you must consider the Proportion that is betwixt one Degree in the Parallel of 55 Degrees of Latitude and a Degree of the Equator and by so much as the later exceeds the former by so much must a Degree of Latitude exceed that of Longitude The Proportion for finding the Quantity of a Degree in any Parallel is this As the Diameter of the Equator is to its Circumference so is the Diameter of the Parallel of 55 Degrees to its Circumference divide the Circumference of the Equator by 360. as also the Circumference of the Parallel of 55 Degrees the first Quote is the length of a Degree of Longitude in the Equator the second the length of a Degree of Longitude in the Parallel of 55 Degrees of Latitude and therefore by so much as the first of these Quotes exceeds the second by so much must a Degree in Latitude exceed that of Longitude in the making of such a Map This brief Account will I hope give some light into the Method of making and projecting of Maps in the prosecution of which I might have been more Copious by adding of Cuts and making a Table of the Longitudes and Latitudes of the Boundaries of some places and so actually transfering them into the Plan or Scheme but when I considered my design was more to shew their use than the method of making them I purposely omitted it If a Map was to be made of any small County Hundred Lordship c. of about 20 or 30 Miles round it is not so exactly Determined by Longitudes and Latitudes but by an actual survey of the same with some Instrument as Semicircle Theodelite c. General Notes for using of Maps IN most of the Circular Maps observe That having found the Name you are not to take that part of the Map possest by such Name for the true position of the place but you are to seek either over under or on one side of such Name for this Mark o and where that stand there is the true point of that place In Right Lin'd Maps Towns and Places are generally represented by the shape of a little House Cities with the like Mark but something bigger When any Map is placed right before you then take Notice That the bottom part or part next to you generally is the Southern part the top or part farthest from you the North part that next your left Hand the West part and the other opposite or next the right Hand the East which Quarters or Parts are commonly Denoted either by the Words North South West and East writ at Top or Bottom and on each side or else by a Compass which is round like a Wheel having 32 points issuing from the Center which represents the 32 points of the Compass at the end of one of them is the Picture of a Flower-de-luce which always points exactly to the North. Hence 't is Evident That you must always seek for the Latitude on the sides of the Map and the Longitude at Top and Bottom which sometimes is differently Numbred by reason that at the top of the Map the Longitude may be reckoned from one place and at the bottom from another Observe also in Maps of Empires and Kingdoms the Divisions of it in Principalities Provinces or Counties is generally performed by a small prickt irregular line Rivers is commonly Denoted by a full Black Line and sometimes by a Double Line Roads are variously Pictured viz. in some Maps by small Black Lines in others by double Prickt Lines and sometimes by single Prickt Lines Mountains are represented by a Black Clouded Figure in shape like a Bell. The Sea is frequently in all coloured Maps painted Green if the Maps are not coloured the space Denoting the Sea is left White The Land is bounded from the Sea by an Irregular Dark clouded Line which if the Map be Painted is generally Coloured But in Maps there is generally an Explanation of the Marks and Characters there used as how they Note Boundaries Roads and Rivers also which mark signifies Cities which Market Towns which Villages c. Take Notice likewise that to several Maps there are three sorts of Scales to which are prefixed the names Magna Medieria and Parba the meaning of which is this that you should measure the great Miles upon the Magna scale The Mean Miles upon the Mediocria Scale And the Small Miles upon the Parva Scale For not only other Countrey Miles differ from ours but even we among our selves the Miles in Yorkshire and several other places being much larger than those about London How to find out places upon any sort of Maps THere is but two Methods of finding out places in any Map the one is by Longitude and Latitude and the other by Bearing and Distance the former of which is most peculiar to circular Maps the later to right lin'd Maps though either of the said methods may be used for the finding of places in both kinds of Maps As to the first of these there is one grand difficulty in it which is upon account of beginning the Longitude because as I have already observed in one Map the Longitude begins from Gratiosa another from St. Michael a third from Teneriff and a fourth from some other place so that unless you know from what place they reckon the Longitude of any Map you can never know by this method how to find out any place in such Map though the Longitude and Latitude of the place be given which indeed is a very great misfortune For was all the Geographers but unanimously agreed from whence to begin it that is would they but all agree to fix it at any on particular place it would make the Science of Geography very Easie and Pleasant But however because it is otherwise at present I shall incert a Table shewing the difference of Longitude betwixt Pico Teneriff and most of the principal places from whence they have begun to reckon and then proceed to the method of doing it Betwixt Pico Teneriff and