82 
GEOGRAPHIC TABLES AND FORMULAS. 
[BULL. 214. 
Table 10. — Areas of quadrilaterals of earth's surface of 15' extent in latitude and 
longitude — Continued. 
[From Smithsonian Geographical Tables.] 
Middle latitude 
Area in 
Middle latitude 
Area in 
Midd 
e latitude 
Area in 
of quadrilateral. 
square miles. 
of quadrilateral. 
square miles. 
of quadrilateral. 
square miles. 

/ 
// 
o 
/ 
// 

/ 
// 
33 
07 
30 
249. 76 
38 
37 
30 
233. 28 
44 
07 
30 
214. 61 
33 
15 
00 
249. 41 
38 
45 
00 
232. 88 
44 
15 
00 
214. 17 
33 
22 
30 
249. 06 
38 
52 
30 
232. 48 
44 
22 
30 
213. 72 
33 
30 
00 
248. 71 
39 
00 
00 
232. 07 
44 
30 
00 
213.27 
33 
37 
30 
248. 36 
39 
07 
30 
231. 67 
44 
37 
30 
212. 82 
33 
45 
00 
248. 00 
39 
15 
00 
231. 27 
44 
45 
00 
212.37 
33 
52 
30 
247. 65 
39 
22 
30 
230. 86 
44 
52 
30 
211.91 
34 
00 
00 
247. 29 
39 
30 
00 
230. 45 
45 
00 
00 
211.46 
34 
07 
30 
246. 93 
39 
37 
30 
230. 04 
45 
07 
30 
211.00 
34 
15 
00 
246. 57 
39 
45 
00 
229. 63 
45 
15 
00 
210. 55 
34 
22 
30 
246. 21 
39 
52 
30 
229. 22 
45 
22 
30 
210. 09 
34 
30 
00 
245. 85 
40 
00 
00 
228. 81 
45 
30 
00 
209. 63 
34 
37 
30 
245. 49 
40 
07 
30 
228. 40 
45 
37 
30 
209. 17 
34 
45 
00 
245. 13 
40 
15 
00 
227. 99 
45 
45 
00 
208. 71 
34 
52 
30 
244. 76 
40 
22 
30 
227. 57 
45 
52 
30 
208. 25 
35 
00 
00 
244. 40 
40 
30 
00 
227. 15 
46 
00 
00 
207. 78 
35 
07 
30 
244. 03 
40 
37 
30 
226. 73 
46 
07 
30 
207. 32 
35 
15 
00 
243. 66 
40 
45 
00 
226. 32 
46 
15 
00 
206. 86 
35 
22 
30 
243. 29 
40 
52 
30 
225. 90 
46 
22 
30 
206. 39 
35 
30 
00 
242. 92 
41 
00 
00 
225. 48 
46 
30 
00 
205. 92 
35 
37 
30 
242. 55 
41 
07 
30 
225. 06 
46 
37 
30 
205. 45 
35 
45 
00 
242. 18 
41 
15 
00 
224. 64 
46 
45 
00 
204. 99 
35 
52 
30 
241. 80 
41 
22 
30 
224. 21 
46 
52 
30 
204. 52 
36 
00 
00 
241. 43 
41 
30 
00 
223. 79 
47 
00 
00 
204. 05 
36 
07 
30 
241.05 
41 
37 
30 
223. 36 
47 
07 
30 
203. 57 
36 
15 
00 
240. 67 
41 
45 
00 
222. 93 
47 
15 
00 
203. 10 
36 
22 
30 
240. 29 
41 
52 
30 
222. 50 
47 
22 
30 
202. 63 
36 
30 
00 
239. 91 
42 
00 
00 
222. 08 
47 
30 
00 
202. 15 
36 
37 
30 
239- 53 
42 
07 
30 
221.65 
47 
37 
30 
201. 67 
36 
45 
00 
239. 15 
42 
15 
00 
221. 21 
47 
45 
00 
201. 20 
36 
52 
30 
238. 77 
42 
22 
30 
220. 78 
47 
52 
30 
200. 72 
37 
00 
00 
238. 38 
42 
30 
00 
220. 35 
48 
00 
00 
200. 24 
37 
07 
30 
237. 99 
42 
37 
30 
219.91 
48 
07 
30 
199. 76 
37 
15 
00 
237. 61 
42 
45 
00 
219. 48 
48 
15 
00 
199. 28 
37 
22 
30 
237. 22 
42 
52 
30 
219. 04 
48 
22 
30 
198. 80 
37 
30 
00 
236. 83 
43 
00 
00 
218.60 
48 
30 
00 
198. 32 
37 
37 
30 
236. 44 
43 
07 
30 
218. 16 
48 
37 
30 
197. 83 
37 
45 
00 
236. 05 
43 
15 
00 
217. 73 
48 
45 
00 
197. 35 
37 
52 
30 
235. 66 
43 
22 
30 
217.28 
48 
52 
30 
196. 86 
38 
00 
00 
235. 26 
43 
30 
00 
216. 84 
49 
00 
00 
196. 38 
38 
07 
30 
234. 87 
43 
37 
30 
216. 40 
49 
07 
30 
195. 89 
38 
15 
00 
234. 47 
43 
45 
00 
215. 96 
49 
15 
00 
195. 40 
38 
22 
30 
234. 07 
43 
52 
30 
215. 51 
49 
22 
30 
194. 91 
38 
30 
00 
233. 68 
44 
00 
00 
215. 06 
49 
30 
00 
194. 42 
