I originally sent my reply to Jamie, not realizing right away that she'd posted her message and the attachments and not wanting to clutter the list. But since you were interested enough, Michael, to read it and open the attachments, below is what I said and what else I found that might be more useful for Barbara. Jamie's going to ask her. Cindy Thanks. I do have some of the symbols that could be inserted, like Æ?; and others are Greek or Roman letters, e.g., the first thing in the top equation is a capital Greek psi, which stands for 700--but I haven't found a way to paste it in, though one could write it out. But to bother to translate or transliterate the equations, obviously, is, as you suggest, way to time-consuming to bother with. However, reading the paragraph before the first equation, I don't think it's necessary. You could just treat it as an illustration and write equation in brackets. But I wonder if the person who wants the bioptic info really wants something that scientific. There's a book listed on amazon, unfortunately currently unavailable but maybe available in someone's library (not mine): Bioptic telescopic spectacles for driving a motor vehicle by Gerald Fonda. But--good news!! When I went to Barnesandnoble.com to look for the above book, there was a referral to a site http://www.biopticdriving.org/ and it contained the article below. Perhaps you can pass this site and informtion on to whoever you were doing the book for. The referral was at the end of a summry of this book: Driving with Confidence: A Practical Guide to Driving with Low Vision by Eli and Doron Peli. The article on the bioiptic site is below Cindy Have you been told you can't drive because of reduced resolution or visual acuity? Perhaps you can! A BiOptic is a lens system with a telescope attached to a pair of glasses, above (BTL is below) one's normal line of sight. This allows a trained user the opportunity to detect objects or movement within his/her driving scene using the wide field of view available through the regular spectacle lens and to resolve fine details such as road signs and traffic lights by glancing briefly and intermittently into and out of the miniature telescopic unit. BiOptic lens systems used for visual assistance in the driving task are available in a number of different styles, sizes, and powers: the latter most commonly ranging from 2X - 5.5X ( " X " referring to the strength or power of magnification of the telescopic unit). It was William Feinbloom, O.D. who coined the name "BiOptic" and the abbreviation BTS in the 1950's, when he first designed the lens. He used the abbreviation BTS for "BiOptic telescopic system" Dr. Feinbloom defined a BiOptic as "a bi-visual optical system which mounts a miniature aperture telescope in the superior portion of a carrier lens enabling the user to rapidly change fixation from the carrier lens to the telescopic system." More information may be found in Dr. Feinbloom's many publications, in professional journals published during the 60's, and 70's, until his death during the 80's. He first reported on the BiOptic in 1958. Also, Schapero's Diction of Visual Science defines "a bi-visual system consisting of a small aperture telescope to magnify distant objects mounted in a portion of the patient's normal distance correction lens." Some jurisdictions in the US restrict the power of the telescopes permitted. Of course, not all BiOptics are used for driving. The use determines the power, working distance and location on the carrier lens. ____________________________________________________________________________________ Be a better Heartthrob. Get better relationship answers from someone who knows. Yahoo! Answers - Check it out. http://answers.yahoo.com/dir/?link=list&sid=396545433 To unsubscribe from this list send a blank Email to bksvol-discuss-request@xxxxxxxxxxxxx put the word 'unsubscribe' by itself in the subject line. To get a list of available commands, put the word 'help' by itself in the subject line.