Projekt: Bestände der Universitätsbibliothek Freiberg
LDP: UB Freiberg Druckschriften
Strukturtyp
Monographie
Parlamentsperiode
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Wahlperiode
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Titel
Rara Avis in Terris: Or The Complet Miner; In Two Books
Untertitel
The First Containing, The Liberties, Laws and Customs of the Lead-Mines, within the Wapentake of Wirksworth in Derbyshire; in fifty-nine Articles, being all that ever was made. The Second toacheth The Art of dialling and levelling Grooves; a Thing greatly desired by all Miners; being a Subject never written on before by any. With An Explanation of the Miners Terms of Art used in this Book
( 45 ) held the String when you began to plum fhfc Shaft ; the Rule lying to the Side of the Dial, and the Needle ftanding upon 52, make a Mark at 22 Inches upon the Ground ; and fo you have done the firft Point: And in like Manner you mull do all the Reft, if you go over thefc Points ftngly, one by one ; but bfi- caufe here is feveral fquare Points before you come to any by-point, that goes as the Rake goes; therefore you may take all thefe fquare Points together, firft adding their Lengths up, and knowing how many Rules and Inches they make : As for Example. Ru. Inch. Ur firjl Point is 00. 22. The fccond Point is 01. 02. The third Point is 00. r 8. ? he fourth Point is 01. 10. Sum is 2. 52, Which by Reduction makes 4 Rules and 4 Inches ; that is, 3 Yards wanting 8 Inches, and fo much your Shaft hades; therefore if you firft meafure out fo much upon your Cord, and hold one End at the fame Place 011 the Stows, and give him the other End to go for wards with ; then the Side of the Dial' lying ftreight with the String, and the Needle ftand ing upon 52, bid him make a Mark there; and fo you have taken all the 4 Points together’ and found the Mark above Ground, which he made at the Shaft-foot : Then go to the Mark he made, and looking in your Note, what your N next