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SQUARES, CUBES, SQUARE ROOTS, AND CUBE ROOTS-Continued.

No. Square.

Cube.

Square Cube
Root. Root.

No. Square. Cube.

Square Cube
Root. Root.

THIS TABLE IS TAKEN FROM

For the Ramapo Wheel and Foundry Co.
Published by D. Van Nostrand,
"Hamilton's Useful Information for Railway Men,”

481 231361 111284641 21.931 7.835 511 261121 133432831 22.605 7.994 482 232324 111980168 21.954 7.840 512 262144 134217728 22.627 8.0 488 233289 112678587 21.977 7.846 513 263169 135005697 22.649 8.005 484 234256 113379904 22.0 7.851 514 264196 135796744 22.671 8.010 485 235225 114084125 22.022 7.856 515 265225 136590875 22.693 8.015 486 236196 11479125622.0457.862 516 266256 137388096 22.7158.020 487 237169 115501303 22.068 7.867 517 267289 138188413 22.737 8.025 488 238144 116214272 22.090 7.872 518 268324 138991832 22.759 8.031 489 239121 116930169 22.113 7.878 519 269361 139798359 22.7818.036 490 240100 117649000 22.135 7.883 520 270400 140608000 22.803 8.041 491 241081 118370771 22.1587.889 521 271441 141420761 22.8258.046 492 242064 119095488 22.181 7.894 522 272484 142236648 22.847 8.051 493 243049 11982315722.203 7.899 523 273529 143055667 22.8698.056 494 244036 120553784 22.226 7.905 524 274576 143877824 22.891 8.062 495 245025 121287375 22.248 7.910 525 275625 144703125 22.9128.067 496 246016122023936 22.2717.915 526 276676 145531576 22.934 8.072 497 247009 122763473 22.293 7.921 527 277729 146363183 22.9568.077 498 248004 123505992 22.315 7.926 528 278784 147197952 22.978 8.082 499 249001 124251499 22.338 7.931 529 279841 148035889 23.0 8.087 500 250000 125000000 22.360 7.937 530 280900 148877000 23.021 8.092 501 251001 125751501 22.3837.942 531 281961|149721291 23.043 8.097 502 252004 126506008 22.405 7.947 532 283024 150568768| 23.065 8.102 503 253009 12726352722.427 7.952 533 284089 151419437 23.0868.107 504 254016 128024064 22.449 7.958 534 285156 152273304 23.108 8.112 505 255025 128787625 22.472 7.963 535 286225 153130375 23.1308.118 506 256036 129554216 22.494 7.968 536 287296 153990656 23.151 8.128 507 257049 130323843 22.516 7.973 537 288369 154854153 23.1738 128 508 258064 13109651222.5387.979 538 289444 155720872 23. 194 8.133 509 259081 131872229 22.561 7.984 539 290521 156590819 23.2168.138 510 260100 132651000 22.583 7.989 540 291600 157464000 23.237 8.143

HALL AND SONS'

BUFFALO FIRE BRICK WORKS,

BUFFALO, NEW YORK.

FIRE BRICKS

OF THE BEST QUALITY. FOR ALL PURPOSES,

MANUFACTURED OF THE

Best New Jersey Clays,

FROM OUR OWN MINES.

SPECIAL ATTENTION GIVEN TO ORDERS FOR

LOCOMOTIVE BRICK, ALSO CUPOLAS FOR IRON OR BRASS

N. H. GARDNER & Co.

TANNERS and MANUFACTURERS OF

OAK LEATHER BELTING

AND DEALERS IN

Lace Leather.

Office, 129 Washington St., Tannery, 852 Seneca St.. BUFFALO, N. Y.

ALL GOODS WARRANTED AND SATISFACTION GUARANTEED.

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.Philadelphia, Pa.....

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28

Lewis Oliver & Phillips; H. B. Newhall, Ag't...New York..
Pittsburgh Bolt Co.....

Pratt & Co.

Providence Tool Co.; H. B. Newhall, Agent....New York..
The Reading Bolt & Nut Works; H. B. New-

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..Pittsburgh, Pa...
Buffalo, N. Y.................

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Wm. Gilmor of Wm.....

Wilmington, Del..... ......Baltimore, Md.................

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Wm. H. Haskell & Co.; H. B. Newhall, Ag't....New York.....

166

Squares, Cubes, Square Roots, and Cube Roots—Continued.

THIS TABLE IS TAKEN FROM

For the Ramapo and Foundry Co. "Hamilton's Useful Information for Railway Men," Published by D. VAN NOSTRAND,

Wheel

No. Square. Cube. Square Cube

No. Square. Cube. Square Cube

Root. Root.

Root. Root.

8.320

541 292681 158340421 23.2598 148 571 326041 186169411 23.8958.296
542 293764 159220088 23.280 8.153 572 327184 187149248 23.9168.301
543 294849 160103007 23.302 8.158 573 328329 188132517 23 937 8.305
544 295936 160989184 23.323 8.163 574 329476 189119224 23.9588 310
545297025 161878625 23.345 8.168 575 330625 190109375 23.9798.315
546 298116 162771336 23.366 8.173 576 331776 191102976 24.0
547 299209 163667323 23.388 8.178 577 332929 192100033 24.020 8.325
548 300304 164566592 23.409 8.183 578 334084 193100552 24.041 8.329
549 301401 165469149 23.430 8.188 579 335241 194104539 24.062 8.334
550 302500 166375000 23.452 8.193 580 336400 195112000 24.0838.339
551 303601167284151 23.473 8.198 581 337561 196122941 24-1038.344
552 304704 168196608 23.494 8.203 582 338724 197137368 24.124 8.349
553305809 169112377 23.5158.208 583 339889 198155287 24.145 8.353-
554 306916170031464 23.537 8.213 584 341056 199176704 24.166 8.358
555 308025 17095387523-558 8.217 585 342225 200201625 24.1868.363
556 309136 171879616 23.579 8.222 586 343396 201230056 24.207
557 310249 172808693 23.600 8.227 587 344569 202262003 24.2288.372
553 311364 173741112 23.6228.232 588 345744 203297472 24.2488.377
552 312481 174676879 23.643 8.237 589 346921 204336469 24.269 8.382
550 313600 175616000 23.664 8.242 590 348100 205379000 24.289 8.387
561 314721 176558481 23.685 8.247 591 349281 206425071 24.310 8.391
562 315844 177504328 23.706 8.252 592 350464 207474688 24.3318.396
553 316969 178453547 23.727 8.257 593351649|208527857 24.351 8.
564 318095 179406144 23.7488.262 594 352836 209584584 24.3728 406
565 319225 180362125 23.7698.267 595 354025 210644875 24.3928.410
566 320356 181321496 23.790 8.271 596 355216 211708736 24.4138.415
557 321489 182284263 23.8118.276 597 356409 212776173 24-433 8.420
568 322624 183250432 23.832 8.281 598 3576c4 213847192 24.4548.424
569 323761 184220009 23.853 8.286 599 358S01 214921799 24.474 8.429
570 324900 185193000 23.874 8.291 600 360000 216000000 24.494 8.434

8.368

401

[blocks in formation]

DRAWING ROOM AND SLEEPING COACHES, TENDERS, LOCOMOTIVES, PASSENGER AND FREIGHT CARS.

RAMAPO, Rockland County, NEW YORK.

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Gang Saw, 30 square feet of dry oak, or 45 square feet of dry pine, per hour, requires 1 horse-power.

Circular Saw, 2.5 feet in diameter, 270 revolutions per minute, 40 square feet of oak, or 70 of dry spruce, requires 1 horse-power.

300 revolutions per minute. 1.33 square feet of dry pine per minute, kerf 7-32 inch and 6 inches deep, requires the power of 1 horse for the saw alone; and 1 square feet, kerf 14 inch and 1 foot in depth, requires a like power.

4.5 feet in diameter, kerf 14, and 1 foot in depth, requires 1 horse-power for 1.33 feet per minute.

Oak requires nearly one-half more power than pine.

With a kerf of 1 inch, 1 horse-power will saw 2.66 square feet per minute.

The speed of the periphery should be about 50 feet per minute.

SQUARES. CUBES, SQUARE ROOTS, AND CUBE ROOTS-Continued.

THIS TABLE IS TAKEN FROM

and Foundry Co. Published by D. VAN NOSTRAND, "Hamilton's Useful Information for Railway Men,"

For the Ramapo

Wheel

No. Square. Cube.

Square Cube No. Square.

Cube.

Square Cube
Root. Root.

Root. Root.

601 361201 217081801 24.515 8.439 631 398161 251239591 25.119 8.577
602 362404 218167208 24.535 8.443 632 399424 252435968 25.139 8.581
603 363609 219256227 24.556 8.448 633 400689 253636137 25.159 8.586
604 364816 220348864 24.576 8.453 634 401956 254840104 25.1798.590
605 366025 221445125 24.596 8.457 635 403225 256047875 25.199 8.595
606367236 22254501624.6178.462 636 404496 257259456 25.219 8.599
607 368449 223648543 24.6378.467 637 405769 258474853 25.238 8.604
608 369664 224755712 24.657 8.471 638 407044 259694072 25.258 8.608
609 370881 225866529 24.6778.476 639 408321 260917119 25.2788.613
610 372100 226981000 24.698 8.480 640 409600 262144000 25.298 8.617
611 373321 228099131 24.718 8.485 641 410881 263374721 25.3178.622
612 374544 229220928 24.7388.490 642 412164 264609288 25.3378.626
613 375769 230346397 24.758 8.494 643 413449 265847707 25-357 8.631
614 376996 231475544 24-779 8.499 644 414736 267089984 25.377 8.635
615 378225 232608375 24.799 8.504 645 416025 268336125 25.396 8.640
616 379456 233744896 24.8198.508 646 417316 269585136 25.416 8.644
617 380689 234885113 24.839 8.513 647 418609 270840023 25.4368.649
618 381924 236029032 24.8598.517 648 419904 272097792 25.455
619 383161 237176659 24.8798.522 649 421201 273359449 25-475 8.657
620 384400 238328000 24.899 8.527 650 422500 274625000 25.495 8.662
621 385641 239483061 24.919 8.531 651 423801 275894451 25.5148.666
622 386884 240641848 24.939 8.536 652 425104 277167808|25-534
623 388129 241804367 24.9598.540 653 426409 278445077 25.553
8.675
624 389376 242970624 24.979 8.545 654 427716 279726264 25.573 8.680
625 390625 244140625 25.0 8.549 655 429025 281011375 25.592 8.684
626 391876 245314376 25.019 8.554 656 430336 282300416 25.6128.688
627 393129 246491883 25.039 8.558 657 431649 283593393 25.6328.693
628 394384 247673152 25.059 8.563 658 432964 284890312 25.651 8.697
629 395641 248858189 25.0798.568 659 434281 286191179 25.670 8.702
630 396900 250047000 25.099 8.572 660 435600 287496000 25.690 8.706

630396:

8.653

8.671

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