filose

[ Lat.filum a thread.] Bot ., Zool., & c .: Ending in a thread-like proce . fil-o-şělle, s . (Fr.) Flo silk; ferret; grogram yarn or thread. fil-ter (1), *fil-tre, s. [Fr. filtre, from Low Lat. filtrum, feltrum felt.] [FILTER, v.] *1. A twist of thread, of which one end is dipped in the liquor to be defecated, and the other hangs below the bottom of the ve el, so that the liquor drips from it. 2. A ve el, chamber, or reservoir through which water or other liquid is pa ed to arrest matters mechanically suspended therein. The idea does not nece arily include specific chemical action, though doubtle animal and vegetable charcoal have a faculty for absorbing gases and deleterious and effete matter, especially organic. "There remained in the filtre a powder of a very deep and lovely color."- Boyle : Works , i. 365. 3. The term is also applied to an apparatus for arresting dust, steel-filings, smoke, ., in the air breathed. A filter recommended by Profe or Tyndall consists of a cylinder four or five inches long and two inches or more in diameter. Its interior contains, at the top, a layer of cotton-wool which has been moistened with glycerine, then a layer of dry cotton-wool, then a layer of charcoal, then cotton-wool, with wire gauze covers at both ends, and at the upper end a mouth-piece so shaped as to fit closely over the mouth of the wearer. By drawing the breath through this instrument, the most dense smoke may be entered with impunity. filter-bed, s. Water-works : A settling pond whose bottom is a filter. It may consist of a reservoir five feet deep, with a paved bottom covered with open-jointed tubular drains leading into a central conduit. The drains are covered with a layer of gravel, and a top layer of sand. The water is delivered upon the surface uniformly, and the rate of subsidence is IMG:content-1631.png:[blocks in formation] "It will but skin and film the ulcerous place." Shakesp.: Hamlet, iii. 4. B. In trans.: To become covered as with a film. "Straight her eyeballs filmed with horror." E. B. Browning. (other things being equal) the le effective is the operation.