TOTAL COST.

Cane, 3,840 tons,@ $2 $7,680

Seed, 967 tons, @ $3 1,934

------- $9,614 00

Labor bill from August 15 to October 15,

including labor for department experiments 5,737 16

Coal, including all experiments 1,395 77

Salaries, etc. 3,500 00

Insurance, sundries, etc. 1,500 00

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Total $21,746 93

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Total value $34,476 50

Total cost 31,248 93

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Net $13,329 57

To be paid by the department 6,534 75

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Total profit for season's work, 1887 $19,764 32

Scientific American Supplement, No. 633, February 18, 1888 · 第 17 / 49 题