Isinglass Isinglass Isinglass () is a substance obtained from the dried swim bladders of fish. It is a form of collagen used mainly for the clarification or fining of some beer and wine. It can also be cooked into a paste for specialised gluing purposes. Its origin is from the obsolete Dutch "huizenblaas" – "huizen" is a kind of sturgeon, and "blaas" is a bladder, or German "hausen blas", meaning essentially the same. Although originally made exclusively from sturgeon, especially beluga, in 1795 an invention by William Murdoch facilitated a cheap substitute using cod. This was extensively used in Britain in
Fish in the Trap Fish in the Trap The series begins when a five-year-old boy named Matsui Takahiro is playing with his friend Teru and his dog; suddenly, they both notice a blue-haired young man staring at them named Yuuji. Matsui doesn't know him but is surprised to hear Yuuji say, "I want a dog" before leaving the scene. Many years later Matsui is now a teenager and is seen hanging out with his best friend Eiichi Yoshino, then after watching a high school swimming competition, he falls in love with the swim captain and decides, upon entering his freshman year of high school,