The Spider's Spinning Machine

The "spineret, or web machine oí the comrnon gardeu spider is au object worthy of the careful study of every owner of a ruicroscope. It consista of fonr nnited masses, oach pierced by a multitude of holes, the openings being imperceptible to the naked eye. These several holes each permit the passage of a single thread. Some idea of the infinitesimal finenessof these threads may be gaiued when it is known that the spider's thread as we see it is made up of upward of 4,000 miuute webs, 1,000 from each of the four spineret masses. These 4,000 separate threads uuite at the niain opening of the spineret, making the single filanient from which the