“ The text layer has been created by a computer program attempting to read the page image and recognise the letters and symbols therein, called Optical Character Recognition or OCR. Computer programs are not always very good at doing this. The number of errors depends on the clarity of the image and the quality of the software but there is often something that needs to be corrected. ”

“ The only one I ever heard of being furnished with that commodity was [ [w:HMS Challenger (1858) |H.M.S. "Challenger,"] ] on her scientific cruise round the world, but I remember reading in the "Photographic News" the complaint of a gentleman, that so many years had already passed, and still there was no sign of the "Challenger" photographs ever becoming accessible to the public. ”

“ This is enough as a temporary measure but the image should be added eventually. The same template can insert the image, once it is available on Wikimedia Commons or Wikisource's own File: namespace. In this case, the template would be {{dropinitial| [ [File:Picturesque New Guinea - Initial F.png|100px|alt=F] ] }}. Note the use of the alternative text, alt=F, which will allow software such as screenreaders to read the letter (most software will not otherwise be able to interpret the image as anything other than an image) . ”