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I would respectfully renew my recommendation relative to the building of a cupola, and making our shoes and dies at the mill. There are now 100 tons or more of old castings at the mill, and I am confident that a saving of 50 per cent. upon the present cost can be made by using this iron and making them at the mill.

Your attention is respectfully called to the tabular statements herewith, which will give you a more comprehensive idea of the details of operating the company's mine and mill. Yours, truly,

CHAS. FORMAN, General Superintendent. Table No. 1.-Condensed statement of cost of production, fc., for company, year ending

July 31, 1871.

ORE STATEMENT.

Tons. Lbs.

378 1,659 482 1,758

95 1,890 16,500 977

Ore on hand August 1, 1870...
Ore received from Hanchett & Rutherford.
Ore received from Barnes & Scott...
Ore extracted by company during year...

Total
Ore worked by company during year, plus moisture deduction..
Ore on hand August 1, 1871..

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COST PER TON.

Extracting...
Prospecting, improvements, and incidentals.
Reduction

$14 20.6
10 30.7
1960.4

Total cost per ton .....
Average yield per ton of ore worked...

44 11.7 105 34.

WORK OF ASSAY OFFICE.

Number of troy ounces of bullion before melting
Number of troy ounces of bullion assayed after melting.
Average loss in melting, per centum..
Number of ore assays madə
Number of bars made...

2, 288,782. 63
2, 170, 352, 28

5.4 1,890 1,328

TABLE No. 2.-Statement showing the amount of ore extracted and cost of extraction for the company year ending July 31, 1871.

ORE EXTRACTED.

SUNDRIES.

EXTRACTING ORE,

Shaft No. 3. Black shaft.

[blocks in formation]

448 1,504

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26 1,760 277 1, 840

196 1,315
329 160 14 1,565
332 1,318

72 1,725 174 1,705 137 575

865

1, 328 815 1, 229 1, 195 1, 247 1,620 1, 464 764 1,534 1,062

$813 50 283 18 616 66 616 66 616 67

$383 25 738 00 125 00 105 50 376 25

$1, 204 14 $14,719 74 2,740 63 24, 298 00 2, 693 85 16, 173 00 2, 488 22 14, 862 00 2, 375 83 17, 865 75

$1,767 78 3, 882 92 2, 568 73 3, 394 41 3,758 14

20 1, 240

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[blocks in formation]

Tunnel west.

Montbg.

Tons.

1870.

August
September
October...
November
December

852 1,551
755 40

893 1,030
1, 052 201
1,055 057

1871.

January
February
March
April
May..........
Juno ....
July

850 563
493 184
391 1,068
343 1, 838
416 188
361 1,083
327 250

409 150
272 990
415 624
478 1,926
510 78
460 379
476 1,096

Total

17, 793

53 3,511

852 1,349 1,117 374

115 223 1,075 2, 335

409 913 1, 356 16,500

977

8, 891 06

5, 139 47

40, 298 79

198, 282 43

36, 130 27

*$15,000 bullion tax.

+ $4,387 09 bullion tax.

TABLE No. 2.- Statement showing the amount of oro extracted, fo. Continued.

[blocks in formation]
[blocks in formation]

$25, 888 86 $1 80.7 $12 41 $4 78.5 $0 48.6 $19 48.8 $84 38

35, 948 73 3 05.822 91.8 2 16.7 1 09.3 29 23.6 5,914 65 $1, 100 00 36, 268 75 2 75. 3 15 01.9 8 50.2 2 79.2 29 06.6 9, 302 35 500 00 28, 289 24 2 19.2 12 46.5 3 84.4 81.7 19 31.8 9, 668 22

32, 496 07 2 19 14 09.8 4 26.4 62.4 21 17.6 12, 768 59

800 00

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TABLE No. 3.-Statement showing the amount of ore on hand, worked, and cost of reducing for company year ending July 31, 1871.

ORE.

TIME.

AVERAGE ASSAY

PER TON.

AVERAGE ASSAY OF TAILINGS.

300 1, 247

726 1,863

37

1,503 1, 449 1,312 1, 007 1, 161 1, 608 1, 614

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133 45 115 90 133 38 116 70 132 67

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1,231

836

1, 635 1, 286

Months.

Month

Received.

Worked.

Moisture deduc. tion 41 per ct.

Balance on

Running by

pans.

Lost by

hand.

Running by

stamps.

pans.

Lost by stamps.

Worked

Libe

Gold.

Silver

Silver.

Gold.

Silver.

Tons.

Lbs.

Tons.

Lbs.

Tons.

Lbs.

Tons.

Lbs.

D's.

H. m. D's.

H. m. D's. H. m. D's. H,m.

1870.
August.
September
October
November
December

451
610

736
1, 117
1, 122

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1871.
January
February
March.
April
May
June
July

Total.

1, 904
1, 510
1, 027
1, 722
1, 409
1, 375
1, 325

848
148

17, 458

284 15,395

1,064

1, 286

749 316

48 10 6 339

25

TABLE No. 3.-Statement showing the amount of ore on hand, worked, fc.-Continued.

76. 7 77.6 68 67 74. 4

154, 097 78
136, 047 65
124, 786 01

82, 746 50
119, 338 57
157, 498 21
193, 665 37

7,549 17 7, 205 53 6,453 06 5, 108 98 5, 345 27 7, 935 02 7,951 70

6, 227 90 6, 627 57 4, 925 20 4, 587 50 5, 266 50 5, 585 25 5, 982 37

14, 160 07 10,121 58 13, 047 45 10,817 70 11, 673 86 11,885 58 9,921 10

6,813 75

573 00

658 50
1,808 25
5, 439 20
4,425 36
2, 022 70

34, 750 89 24, 527 68 25, 084 21 22, 322 43 27,724 83 29, 831 21 25, 877 87

4 75 4 75 4 75 4 75 4 75 4 75 4 75

3 92.5 4 36.9 3 62.5 4 26.5 4 68 3 34.3 3 57.2

8 90.9 6 67.2 9 50 10 05 10 37.3 7 1.4 5 92.4

4 28.7

37.7

47.5
1 68.1
4 83.3
2 64.8
1 20.8

21 87.1 16 16.8 18 35 20 74.6 24 63. 6 17 85.5 15 45.4

4. 48 2. 33 4. 38 5. 65 3. 41 2. 06 3. 86

74

73

TOTAL COST.

RELATIVE COST.

Month.

Average yield of

bullion per ton.

Average percent.

age extracted.

Total amount of bullion produced.

Grand
total.

Total
cost per

ton,

Average loss quick

silver per ton.

Hauling

ore.

Labor.

Materials,

Improve.
ments.

Haul-
Ing.

Labor.

Material.

Improve.
ments,

1870.
August.
September
October ...
November
December

$66 41
114 69
151 86
133 06
103 85

54. 4
64,3
87.9
82.5
81.8

$77, 100 82
114, 488 35
166, 011 06
135, 387 62
151, 731 20

$5.876 73
5, 146 52
5,355 20
5, 145 89
7, 267 72

$6, 516 49
4, 27€ 68
4, 684 87
4, 680 50
6, 137 72

$7, 989 51
8,585 27
7, 373 54
6, 628 19
16, 328 79

$1, 669 08
7,316 68
8,570 97
7,385 14

$20, 382 73
19, 679 55
24, 730 29
25, 025 55
37, 119 37

$4 75
4 75
4 75
4 75
4 75

$5 26.7
3 94.9
4 15. 5
4 32
4 01

$6 45.3
7 92.4
6 54
6 11.9
10 66.9

$1 54
6 49
7 91.1
4 82.5

$16 47.5
16 10.3
21 93.5
23 10
24 25.4

Lbs.
3. 77
4.76
2. 39
2. 40
5. 82

1871,
January.
February
March
April.
May
June
July

102 48
93 89
95 09
82 17
102 71

97 90
119 96

Total.

105 34

73. 4

1,612, 899 14

76, 340 79

65, 500 55

128, 532 64

46, 682 63

317, 056 61

4 75

4 05

7 94.8

2 85.6

19 60.4

3. 77

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