In a story to be released later in 09, I have an infant that must be fed with a bottle. Because I wasn’t certain when bottles were invented nor how babies were fed before that (when no wet nurse was available) I set out to research the topic. Very interesting, it was. So in case you were wondering (I’m sure it was high on your list of things to consider) here is some of the information I found.
Much of the information came from the site:
http://www.babybottle-museum.co.uk/
The banjo shaped feeders of the late 1800’s was made popular because the Princess of Wales used it. Hence the name.

Elijah Pratt of New York patented the first rubber teat in 1845 which made bottles a lot easier to use. Early formulas consisted of (in 1867) wheat flour, cow milk, malt flour, and potassium bicarbonate. You have to wonder that any babies survived.
Charles M Windship of Roxbury, Massachusetts, patented the first United States nursing bottle in 1841. Many nursing bottles of the late 1800s were made to lay flat and a few types were embossed with reminders to ‘Feed the Baby.’

I don’t know. It seemed my babies reminded me themselves.
Eaton Catalogues (1915-1916)and other sources called the bottles NURSERS or sanitary feeders. Check out the prices on these. Some bottles  had nursery rhymes embossed on them. Seems a little more appropriate than reminders to feed the baby. The one on the purple background says, ‘See Saw Margie Daw’ and has a drawing of a boy and girl on a seesaw.