Finding text on web pages in Safari on iOS

A big drawback to using Safari on iOS is the inability to use a Find option to locate text on an open web page. If I'm reading a long article in Wikipedia, or any page with a lot of information on it, and I need to see specific text in the context of the whole article or page, that Find feature is as vital on Safari iOS as it is on browsers on Mac OSX or Windows. In fact, sometimes I retreat to my Mac just to do those page searches. This glaring omission was on iOS3, and, as far as I know, it remains on iOS7. I can't imagine Apple not trying to implement this feature, so there must be a big coding problem in iOS that prevents it's implementation.

Does anyone know of any way to accomplish the Find function in Safari iOS or any other iOS browser?

(NOTE: This is different from the Search field found on most websites.)