. Mathematics, compiled from the best authors and intended to be the text-book of the course of private lectures on these sciences in the University at Cambridge [microform]. 1 750 j A /50 _J ___ 4440 36-|— 4420 V 3884 u — 3380 60—( 2992 90 2692 * V 120 2624 //^S- 2592 =— 2500 s 2070 56 j leave off / 1900 _/ f 1840 r 60 1770 1320 9 808 P leave off 40 650 80 360 O 20 170 i — ,,- Vol. II. W i(SB MATHEMATICS. — 22b0 — 22 70 E 2056 22302050 ^H 2030 ——_ 1940 j r-iao to w 1380 96 ?• A _ Ut A «(>() | ! 768 to A 526 70--I | i 70 496460 P T\ f~ ^•-40 124100 Df 644 toy D 488 32 D 400 76 1 . C
. Mathematics, compiled from the best authors and intended to be the text-book of the course of private lectures on these sciences in the University at Cambridge [microform]. 1 750 j A /50 _J ___ 4440 36-|— 4420 V 3884 u — 3380 60—( 2992 90 2692 * V 120 2624 //^S- 2592 =— 2500 s 2070 56 j leave off / 1900 _/ f 1840 r 60 1770 1320 9 808 P leave off 40 650 80 360 O 20 170 i — ,,- Vol. II. W i(SB MATHEMATICS. — 22b0 — 22 70 E 2056 22302050 ^H 2030 ——_ 1940 j r-iao to w 1380 96 ?• A _ Ut A «(>() | ! 768 to A 526 70--I | i 70 496460 P T\ f~ ^•-40 124100 Df 644 toy D 488 32 D 400 76 1 . C 48 10 1 i oOO to r 56 432160 c B 44 36 »r 152 480 to q p B 24 160 j SURVEYING. 163 2-0 O h product by z — 190 46 j , j 80 to V 40 500 76 300 F 76 100 3b0 to k T 20 150 954 J 15 850 . —- 7oO to E 30— 490 340 60 0 280 I 20 170 50 744 toil a f 70 672 C——N 450 0 ilou to y \ 32 1000 \/ 890 ^~\ x 780 32 \ 590 40--W 570 I —_ 530 40— 376 H : 256 150 leave off 190 Q 4: **•?•* ••( G~l 144 130. •X f 1676 <Lt • 1 1676 30-,N) 896 I 24 \ 632 V^ 620 50/\. 180 from u toward v 588 F _, 164 MATHEMATICS. PLAN FROM THE FIELD r I i r n 2. 4 6 10 sto SURVEYING 165 PROBLEM XII. To survey a county, or large tract of land. 1. Choose two, three, or four eminent places for stations jsuch as the tops of high hills or mountains, towers, or churchsteeples, which may be seen from one another, and fromwhich most of the towns, and other places of note, may alsobe seen ; and so as to be as far distant from one another aspossible. On these places raise beacons, or long poles withflags of different colors flying at them, which may be vis-ible from all the other stations. 2. At all the places, which you would set down in the map,plant long poles with flags of several colors on them, to dis-tinguish the places from one another ; fixing them on the topsof church steeples, or the tops of houses, or in the centres of lesstowns. These marks being set up at a
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