This represents an average process, but almost every bleacher has his own methods, differing from the above in some of the details and this applies to all bleaching processes. It is obvious that the details may be varied to a great extent without changing the principles on which the process depends. =Market Bleach=--Here all that requires to be done is to get the cloth of a sufficient degree of whiteness to please the eye of the customer. Market bleachers have, however, to deal with a wider range of goods than is dealt with in the former kinds of bleaches, from very fine muslins to very heavy sheetings. Now it is obvious from a merely mechanical point of view, that the former could not stand as rough a process as the latter, therefore there must be some differences in the details of muslin bleaching and sheeting bleaching. Then again with goods sold in the white, it is customary to weave coloured headings or markings, and as these have to be preserved, to do so will cause some slight alteration of the details of the bleach with this object. On all these points it is difficult to lay down general rules because of the very varying feature of the conditions which are met with by the market bleacher. The resin boil may be omitted, only two lye boils being required, and these need not be so long or of such a searching character as the corresponding boils of the madder bleach. Outlines of two or three such processes, which are now in use in bleach works, will serve to show the general routine of a market bleach. The proportions given are calculated for 10,000 lb. of goods:-- (1) Lime boil, using 500 lb. of lime, and giving a twelve-hours' boil. (2) Grey sour, hydrochloric acid of 2 deg. Tw., then wash well. (3) Lye boil, 100 lb. caustic soda, 70 per cent. solid, ten to twelve hours' boil; wash. (4) Second lye boil, 100 lb., 58 per cent. soda ash, twelve-hours' boil. (5) Chemic, bleaching powder liquor at 1 deg. Tw., boil for three hours; wash. (6) White sour, sulphuric acid at 2 deg. Tw.; wash well. The length of boil with the lime and lyes will depend upon the quality of the goods, heavy goods will require from two to three hours longer than will light goods, such as cambrics, the time given above being that for heavy goods, sheetings, etc. Another process is the following:-- (1) Lime boil, using 480 lb. lime, and boiling for ten hours. (2) Grey sour, hydrochloric acid at 2 deg. Tw.; wash. (3) Lye boil, 300 lb. soda ash, 58 per cent.; 50 lb. caustic soda, 70 per cent., and 30 lb. soft soap, giving ten hours' boil; wash. (4) Chemic as above. (5) White sour as above; wash well. A smaller quantity of lime is used here, but on the other hand the lye boil is a stronger one. This process gives good results. Some bleachers do not use lime in their market bleaches, but give two lye boils, in which case the process becomes:--