Image from page 256 of “Collins’s peerage of The united kingdomt; genealogical, biographical, and historic” (1812)

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Image from web page 256 of “Collins’s peerage of The united kingdomt; genealogical, biographical, and historical” (1812)
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Identifier: collinsspeerageo_08coll
Title: Collins’s peerage of The united kingdomt; genealogical, biographical, and historical
12 Months: 1812 (1810s)
Writers: Collins, Arthur, 1682?-1760 Brydges, Egerton, Sir, 1762-1837
Subjects: Nobility
Publisher: London, Printed for F.C. and J. Rivington, Otridge and Son [etc.]
Contributing Library: University of Pittsburgh Library System
Digitizing Sponsor: Lyrasis Members and Sloan Foundation

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, one of thesenators of college of justice, and contains a son, John Stewart. Which Sir George Stewart, today of Grandtully, Bart, is married withDame Agnes Cockburn, child of Sir Archibald Cockburn, of Langton,Bart. NiiLets Hernldry,ut suj>ra. Colonel John Stewart, the second boy right here pointed out, which afterwardssucceeded toward Baronetage, hitched, secondly. Lady Jane Douglas, above-mentioned, and ended up being parent by the woman for the present Lord Douclas. 248 PEERAGE OF THE UNITED KINGDOMT. buckles, or : fourth, argent, three piles, gules, over-all in a shieldof pretence, argent, a heart, gules, ensigned with an imperialcrown, or, on a chief, azure, three mullets associated with very first: the thirdand 4th quarters to be transposed. Crest. On a chapeau azure, a salamander vomiting fire. Supporters. In the dexter, a savage, wreathed concerning the loinswith laurel, as well as on the sinister a stag proper, all within a com-partment of stakes impaled. Motto. Jamais Arrieke. Chief Seat, Douglas castle, Lanarkshire. LORD GAGE. 24i)

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GAGE, LORD GAGE. fVISCOUNT GAGE JN IRELAND.; This noble family members is of Norman extraction, and derives its de-scent from^* de Gaga or Gage, which followed William Dukeof Normandy, in his expedition into The united kingdomt, and after the con-quest thereof had been compensated by him with large funds of lands inthe forest of Dean, and county of Gloucester] right beside whichforest, he fixed his residence, by building a seat at Clerenwell,otherwise Clureweli, in the same parish; he in addition built a largehouse in town of Cirencester, where he passed away, and was buriedin that abbey; along with his posterity stayed because county, formany generations, in credit and esteem, one whereof inside reignof Edw. III. had been person in parliament for Tavistock, and anotherfor Basingstoke inside time of Hen. IV. The direct ancestor associated with the present Lord Gage, had been JohnGage, Esq. pointed out in deeds, Q Hen. IV. whose son John married Joan, girl and coheir of John Sudgrove, ofSudgrove in Gloucester, who^ in 1416, 4 Hen, V. gave to JohnG

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Image from page 423 of “The book of photography; useful, theoretical and used” (1905)
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Identifier: bookofphotograph00hasl
Title: The book of photography; practical, theoretical and applied
12 Months: 1905 (1900s)
Writers: Hasluck, Paul N. (Paul Nooncree), 1854-1931 Hands, Arthur
Topics: Photography Photography
Publisher: London, Nyc : Cassell and Co.
Adding Library: Boston Public Library
Digitizing Sponsor: Boston Public Library

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a considera-tion of exactly what has been stated with regardto depth of focus will easily show,belongs to another category. Formicroscopic or astronomical work the ob-jects are, almost speaking, in cneplane, or confined toward center of thefield. In ordinary photography, but,objects in numerous airplanes and spreadover a large area have to be all brought :i62 THE GUIDE OF PHOTOGRAPHY. collectively regarding the screen with approxi-mately the exact same amomit of definition.Therefore, a certain give up of criticalsharpness must be made, and a certainamount of understanding known as diffusion of focusintroduced, so that a good averagemay be hit and also the most readily useful effect secured dining table of Depth of Focus. The preceding table, compiled by SirD. Salomon, showing the exact distance at andbeyond which all items have been in focus,with various lenses, will most likely proveof service to individuals who have fixed focushand cameras. The Evolution of Lens. The lens used by Baptista Portafor their digital camera obscura ended up being a plano-

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Fi^. 408.—Pet/.xal Lens. convex, the convex side being closest theimage. Into the digital cameras employed by Daguerre,Avhich were created by Charles Chevalier,of Paris, the lens had been put the otherway round, its level part facing the focus-sing display screen. This is found to givebetter clearness and meaning, but lesscovering power ; and diaphragms or stopswere introduced to treat this defect.A further enhancement, by Andrew Ross,consisted of altering the jet surfaceof the lens into a concave one, formingthereby a meniscus lens. The sameoptician is given the credit of first solvingthe problem of steer clear of linear dis-tortion, that he accomplished by combiningtwo plano-convex contacts divided by adiaphragm. Thomas Ross, a son ofAndrew Ross, improved about this by thesubstitution of a pair of meniscus specs. Introduction regarding the Petzval Lens. In 1841 J. Petzval, a mathematician ofVienna, designed two goals whichwere built by F. Voigtlander fromdrawings supplied by the designer. Omof

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