is prepared from asbestos fiber by essentially a paper making process. Asbestos flock is slurried and deposited in place on a screen in the electrolyzer to form a relatively thick, stiff diaphragm which is held together by the hydroxide gels formed in the asbestos while in operation. The asbestos diaphragm has often been termed a "living diaphragm" in that it is constantly being changed by dissolution, erosion, redeposition and precipitation of silica and alkali earth hydroxides. Suspended particles and dissolved alkali earth metals redeposit preferentially in the higher flow regions allowing a leveling effect on permeability.
However, this "living" or reactive feature of the asbestos diaphragm can contribute to a relatively short life. Usually, within 6-12 months, sufficient chemicals are leached out of the asbestos and the uniformity andto slepe by the morwe?Hastow had fleen al nyght, or artow dronke?Or hastow with som quene al nyght yswonkeSo that thow mayst nat holden up thyn heed?'This Cook that was ful pale, and no thyng reed,

To thee, Sire Cook, and to no wight displeseWhich that heere rideth in this compaignye,And that oure Hoost wole of his curteisye,I wol as now excuse thee of thy tale,For, in good feith, thy visage is ful pale.

And with this speche the Cook wax wrooth and wraw,And on the Manciple he gan nodde faste,For lakke of speche, and doun the hors hym caste,Where as he lay til that men up hym took;This was a fair chyvachee of a Cook!

Allas, he nadde holde hym by his ladel!And er that he agayn were in his