Carlill v Carbolic Smoke Ball Co The Pharmaceutical Society of Great Britain had been fighting an ongoing battle against quack remedies, and had wanted specifically to get carbolic acid on the poisons register since 1882. Although without sympathy for the Carbolic Smoke Ball Company itself, Simpson casts doubt on whether "Carlill" was rightly decided. "The analytical problems arose in a particularly acute form in the smoke ball case. Thus it seemed very peculiar to say that there had been any sort of agreement between Mrs. Carlill and the company, which did not even know of her existence until January 20, when her husband wrote to them
Xeno nucleic acid Xeno nucleic acid Xeno nucleic acid (XNA) is a synthetic alternative to the natural nucleic acids DNA and RNA as information-storing biopolymers that differs in the sugar backbone. As of 2011, at least six types of synthetic sugars have been shown to form nucleic acid backbones that can store and retrieve genetic information. Research is now being done to create synthetic polymerases to transform XNA. The study of its production and application has created a field known as xenobiology. Although the genetic information is still stored in the four canonical base pairs (unlike other nucleic acid analogues), natural DNA polymerases