Henri J.

Rice. John I

Richardson. Arthur H

Richmond, Leonard ______

Higgleman. John R

Risl, Charles ._ '

Roberts, Wridon, Rubber Co_

Rolleiflex camera --

Root-two

Ross, Charles *J., Co. _____ ___^

Rotogravure printing ____________

Route map

Royal Statistical Society of London..

Rubber cement

Ruling: Horizontal ________________

_441A, 44IB. 44 1 C 184. 202B

68-72. 505

.170-177. 492B. 505

441A. 435

429 434

342 B

499A

24, 263. 292

^ 372

397 K

420A

.161-169. 505

Vertical

Salva \tnnnf(nntg»wai

Sampling

Sargent, Walter

Sasco Photo Products

Saturday t'.vtninft Pott

Scucheri, .Mario and Mabel-

Seale

Broken _ ______

382. 383. 389. 391

-127A, 135A. 173

178. 1H7

For area of circle

Time

407 B

41 IB

.320. 321A, 321B. 505

3SXB

Scaling copy _____

Scatter chart

Schairer. J. F ..

Schedule charl

Science Service, Inc.

Screen

Seattle Star .._______

Sector chart ..._______

('umulative

Made on typewriter-

On map .. 194-199

Senii-logarilhmic chart ^ 505

Shading (^rr ufso Halftone and Crosshatching)

98. 100. 116, 180. 186. 278A. 278B. 3S0, 380, 420B. 421. 422

Shading film 419

Shaw Blue Print Machine Co. 431

Shew hart. W. A 381

._271B. 409

_ 183B

-81-91, 363. 505

Shot-gun charl

Signature (.See alto PrinllBg).

Simondt, Frank __-- _

Sinclair, Prior. -- ___^_.^____

Slide rule

U20, SOS

_ . 206 _ . 328B 41 IB

Smith, I.. C, T»pr»«rilrr Cu.

Smilh. «. II.

Stnilhrirwrtl l>lll<llli||

Sodrtalrniii. % alln

Soil Ciiiiarrvalian Srrtirr

South Mmirhiina H*il»a« Co

Sparinii divijrt

Sprrd l.taphir ranirra

Sprrdnat Maniirarliintif ^o.

Spridrl. Cliarlri « .. ( ».