Introducing Knead: Eau De Pretzel. A perfume with the warm, buttery and slightly sweet scent of hot and handmade pretzels. This tantalizing scent should come with a warning that you will smell good enough to eat.

In the 1920s, the product was modified into the menstrual pad Kotex. A further modification of the original crepe paper made it thinner and softer, and the resultant 1924 product was called "Kleenex" and marketed as a cold cream remover...

A few years after the introduction of Kleenex, the Cellucotton's head researcher tried to persuade the head of advertising to try to market the tissue for colds and hay fever. The administrator declined the idea but then committed a small amount of ad space to mention of using Kleenex tissue as a handkerchief. By the 1930s, Kleenex was being marketed with the slogan "Don't Carry a Cold in Your Pocket" and its use as a disposable handkerchief replacement became predominant.

A type specimen is a preserved specimen designated as a permanent reference for a new species, new genus or some other taxon. The type is the first specimen bearing the new scientific name, and the one true example of the species.

The concept of type specimen is central to Linnean taxonomy. Since a species is defined by a physical description, that description necessarily requires looking at a physical object (either a preserved specimen or a detailed illustration). This object becomes the "type," the fixed standard by which all subsequent specimens are identified as "typical" of the species.

The methodology had relaxed somewhat in the first part of the twentieth century, with some scientists substituting instead a syntype, a listing of several examples of a species, none of which had priority over the other. But Stearn was writing in light of a recent crackdown. The keepers of the International Code of Botanical Nomenclature had announced a return to Linnean orthodoxy: All new species would henceforth again be defined by a single instance only, called either a holotype (if chosen by the first describer of the species) or a lectotype (if chosen at a later date). Linnaeus's specimens became holotypes as soon as he used them in compiling Systema Naturae... Its specimens were the definitive examples- the embodiments, so to speak- of their respective species.

Yet Linnaeus had neglected to collect the type specimen of one important species. He had never supplied a holotype for Homo sapiens, and for that matter had defined the species only with the terse phrase nosce te ipsum, Latin for "know yourself." Stearn proposed a novel means of correcting this omission. Since "the specimen most carefully studied and recorded by the author is to be accepted as the type," he wrote, the appropriate lectotype was obvious. Linnaeus had presumably examined himself for decades, even if only by glancing in the mirror while shaving.

"Clearly," Stearn concluded, "Linnaeus himself. .. must stand as the type of his Homo sapiens!"