If you are business minded, a nurse that makes house calls may be the business opportunity for you. In fact, this is historically how most nurses practiced until the 1940s. It is an area with huge growth potential.
Smell is chemistry, and the chemistry of old books gives your cherished tomes their scent. As a book ages, the chemical compounds usedâthe glue, the paper, the inkâbegin to break down. And, as they do, they release volatile compoundsâthe source of the smell. A common smell of old books, says the International League for Antiquarian Booksellers, is a hint of vanilla: âLignin, which is present in all wood-based paper, is closely related to vanillin. As it breaks down, the lignin grants old books that faint vanilla scent.â
The odor is reminiscent of smoldering newsprint: like trying to burn the Sunday newspaper all at once in the fireplace, especially if it's been used to wrap sardines. The friction material is actually a paper composition, which explains the papery part of the smell.