Section 404. 11th Step.

(See the Practice in the 1st Example, Sect. 376.)

Air-Thermom. above was

56°.

Air-Thermom. below was

63.9

———

Whole Heat

119.9

(0 adding a Cypher)
Half Heat

59.95

Standard-Heat

31.24

which deduct; and there
remains each Moiety,
above the Standard-Heat.

———

28.71

12th Step.

405. 12th Step. (See the Practice in the first Example, Section 377.)

By the fourth Table, find the Expansion of Air, with 28.71, (more than the Standard-Temperature) on Feet 3935, .1 Tenth, gradually, thus:

406.

First with 28° on Feet 3000 =204.1⁠[131]
900 as 9000 =612.3
30 3000 =204.1
5 5000 =340.1
.1 1000 =68.0

Note: 1st. The decimal Point in the Answer corresponding to the Place of Thousands, in the Question, is to remain, as taken from the Table calculated for thousand Feet, thus: 204.1.

2d. For Hundreds in the Question, remove the decimal Point one Place in the Answer, thus: 612.3 becomes 61.23: