282 GEOGRAPHIC TABLES AND EORMULAS. [bull. 214. 
Table 28. — For inter conversion of miles and logarithms of meters — Continued. 
Miles. 
Log. meters. 
Diff. log. 
.01 mile. 
Miles. 
Log. meters. 
Diff. log. 
.01 mile. 
Miles. 
Log. meters. 
Diff. log. 
.01 mile. 
94. 00 
5. 17978 
5 
96.00 
5. 18892 
5 
98.00 
5. 19788 
4 
.05 
5. 18001 
.05 
5. 18915 
.05 
5. 19810 
.10 
5. 18024 
.10 
5. 18937 
.10 
5. 19832 
.15 
5. 18047 
.15 
5. 18960 
.15 
5. 19854 
.20 
5. 18170 
.20 
5. 18983 
.20 
5. 19876 
.25 
5. 18193 
.25 
5. 19005 
.25 
5. 19898 
.30 
5. 18116 
.30 
5. 19028 
.30 
5. 19920 
.35 
5. 18139 
.35 
5. 19050 
.35 
5. 19942 
.40 
5. 18162 
.40 
5. 19073 
.40 
5. 19965 
.45 
5. 18185 
.45 
5. 19095 
.45 
5. 19987 
.50 
5. 18208 
.50 
5. 19118 
.50 
5. 20009 
.55 
5. 18231 
.55 
5. 19140 
.55 
5. 20031 
.60 
5. 18254 
.60 
5. 19163 
.60 
5. 20053 
.65 
5. 18277 
.65 
5. 19185 
.65 
5. 20075 
• .70 
5. 18300 
.70 
5. 19208 
.70 
5. 20097 
. 75 
5. 18323 
.75 
5. 19230 
.75 
5. 20119 
.80 
5.18346 
.80 
5. 19253 
.80 
5. 20141 
.85 
5. 18369 
.85 
5. 19275 
.85 
5. 20163 
.90 
5. 18392 
.90 
5. 19297 
.90 
5. 20185 
.95 
5. 18415 
. 95 
5. 19320 
.95 
5. 20207 
95.00 
5. 18437 
97. 00 
5. 19342 
4 
99.00 
5. 20229 
.05 
5. 18460 
.05 
5. 19365 
.05 
5. 20250 
.10 
5. 18483 
.10 
5. 19387 
.10 
5. 20272 
. L5 
5. 18506 
.15 
5. 19409 
.15 
5. 20294 
.20 
5. 18529 
.20 
5. 19432 
.20 
5. 20316 
.25 
5. 18551 
.25 
5. 19454 
.25 
5. 20338 
. 30 
5.] 8574 
.30 
5. 19476 
.30 
5. 203.60 
.35 
5. 18597 
.35 
5. 19499 
.35 
5. 20382 
.40 
5. 18620 
.40 
5. 19521 
.40 
5. 20404 
.45 
5. 18643 
.45 
5. 19543 
.45 
5. 20425 
.50 
5. 18665 
.50 
5. 19565 
.50 
5. 20447 
.55 
5. 18688 
.55 
5. 195SS 
.55 
5. 20469 
.60 
5.18711 
.60 
5. 19610 
.60 
5. 20491 
.65 
5. 18733 
.65 
5. 19632 
.65 
5.20513 
.70 
5. 18756 
.70 
5. 19655 
.70 
5. 20535 
.75 
5. 18779 
.75 
5. 19677 
.75 
5. 20556 
.80 
5. 18802 
.80 
5. 19699 
.80 
5. 20578 
.85 
5. 18824 
.85 
5. 19721 
.85 
5. 20600 
.90 
5. 18847 
.90 
5. 19743 
.90 
5. 20621 
.95 
5. 18869 
.95 
5. 19765 
.95 
5. 20643 
CONVENIENT EQUIVALENTS. 
1 acre =209 feet square, nearly. 
1 acre = 43,560 square feet = 4,840 square yards. 
1 statute mile = 1,760 yards = 5,280 feet = 63,360 inches. 
1 cubic foot = 7.48 gallons = 0.804 bushel. 
1 cubic foot of water weighs 62.4 pounds. 
1 wine gallon = 8.34 pounds water. 
1 wine gallon = 231 cubic inches. 
1 avoirdupois pound = 7,000 grains. 
1 troy pound = 5,760 grains. 
