Mannitol Salt Agar (MSA) is a selective and differential medium. The high concentration of salt (7.5%) selects for members of the genus Staphylococcus, since they can tolerate high saline levels. Organisms from other genera may grow, but they typically grow very weakly.
A chapbook is a pocket-sized booklet. The term chap-book was formalized by bibliophiles of the 19th century, as a variety of ephemera, popular or folk literature. Many different kinds of literature have been made into chapbooks, such as pamphlets, political and religious tracts, nursery rhymes, poetry, folk tales, children's literature and almanacs. When illustrations are included in chapbooks, they are considered popular prints. The term is derived from chapmen, chap coming from the Old English cÃ©ap meaning deal, barter, business, a variety of peddler, who circulated such literature as part of their stock.
For other uses, see E-reader (disambiguation) . A third generation Kindle. A BEBook e-reader. An e-reader, also called an e-book reader or e-book device, is a mobile electronic device that is designed primarily for the purpose of reading digital e-books and periodicals.he reason given for this alarmingly precipitous decline is the rise of more general purpose tablets that provide e-book reading apps along with many other abilities in a similar form factor. In 2013, ABI Research claimed that the decline in the e-reader market was due to the aging of the customer base.