Test types for determining the acuteness of vision / drawn up by George Cowell.

  • Cowell, George
Date:
[between 1890 and 1899?]
Catalogue details

Licence: Public Domain Mark

Credit: Test types for determining the acuteness of vision / drawn up by George Cowell. Source: Wellcome Collection.

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    TEST TYPES, FOR DETERMINING THE AOUTENESS OP VISION. Draion up by George Cowell, F.R.C.S., Surgeon to the Westmmste7% and Royal Westminster Ophthalmic, Hospitals, Sfc. Note. These Tost Types for doterinining the acutoness of vision, are drawn up to correspond with the serios of large types of Db. H. Snkllen, and others. The limhs are In diameter ns nearly as possible one-fifth of the height of the letters, and the figures over each size give tlie number of meters and feet at which the letters are seen by a standard eye. Words of one syllable are chiefly chosen as facilitating the testing of the eyes of those who road imperfectly. A Curd containing letters of each size has been printed for the convenience of carrying In tlie Pocket Book. G. C. f (1.) .45''(ii.r Oat wbcn the Qu«ii of Se.>U In wlntar hm.l brcu sHtiuK «l lliB wluJow .iJc, IcuiUlng ot u, work Kua »ft«r lh« Wt.I wb« covero.l, ilic roM wnut tu Ui« fiM M- ft''. m»lilug li»«te to lifcva tho wjrk BnUlitJ. would not Ixy It ftwy. l-ut workoJ ef U th. tlm« .h. wftrmlng hcr.cK. She look.d (or on« of her i»rTftiit» wlilcli. iaJeoJ. were »U Bono. ir you douht, I pray you ask tlie queition, for the buoner you can adviie me thither the more I shall thank you. I atn sorry lo •iiddcit a chance ahould breed me mo great a change; for uietlutika I am here all thii while a% it were in a dream, and too far from the place nhere I am bound to he. (2.) 75^ (21) I thank you for being here, nnd the gren friendaliip which you have shown towards m I shall not forget. I am loath to wish yoi here again, but I would be very glad to b with you there. I pray you let me hear fvon you what you thhik best for me to do. 9'^'(3.) ^WELLCOME Da Coll. \ we 1^^ O m e©i ops ] \ ill th sul CaH^ No. rely Send some good force that ye may trust to in these parts. To toe short you. he is a rare bu'd that by one means or other, hath not some of his with the two -^arls or in his heart wisheth not well to the cause they pretend. INSTITUTE, ht veerei wind in the course of the storm had round the compass ; cinders had fallen in e from Fleet Street to Newgate Market; of lead were found far away in gardens suburbs, though, strange to say, no life was lifflt, and no other house was injured. a circ The 1.2' (4.) first step must not be taken by for our sake and for tlieii's, but we may tell the Duke that those conditions being first fulfilled, he shall have what he wants. 1.5^'' (5.) ft. For two years now we have been taking the coward's road, we have found it an evil one, and it is time for us to try another. No one has a better right than I to speak of this matter: I have had much to do with them, and know their ways and their resources. 1.8'^ (6.)'' Never again, she well knew it, would she find another Scot so true to England. She had lost her truest friend. There was none other like him in the world. Fronde. 22300003363