Fillers in varying proportions may replace the soda ash in the above formulae. It is of course understood that the soap has been previously made and run as molten soap into the crutcher. The following soap powders will not dry up in the crutcher upon running, but are of the class which may be framed or run on the floor to solidify: I Soap 850 lbs. Filler 400 " Sal soda solution, 20 degs. B 170 " II Soap 650 lbs. Filler 550 " Sal soda solution, 20 degs. B. 340 " III Soap 80 lbs. Filler 550 " Sal soda solution 170 " IV Soap (settled tallow) 800 lbs. Filler 400 " Sal soda solution 170 " Water 100 " V First saponify 100 parts house grease and 100 parts ordinary grease and make a run soap. Then use in crutcher either: Soap 400 lbs. Filler 575 " Hot water 60 " or Soap 200 lbs. Hot water 200 " Filler 625 " It would be a simple matter to write numerous additional formulae, but the above are typical. The manufacturer must judge for himself just what filling material to use. The filler indicated in the above formulae is therefore left open. A few formulae for more expensive powders than those given recently appeared among others in the "Seifensieder Zeitung"[9]: I Powdered soap 90 lbs. Sodium perborate 10 " The perborate should be added when the powder is perfectly dry or it loses its bleaching properties. II Soap powder, 20 per cent. fat. Cocoanut oil fatty acids 25 lbs. Olein 25 " Bone fat 70 " Soda lye, 30 degs. B. 90 " Water 150 " Ammonium carbonate 125 " III Soap powder, 10 per cent. fat. Cocoanut oil fatty acids 20 lbs. Olein 10 " Bone fat 20 " Soda lye, 30 degs. B. 30 " Water 175 " Ammonium carbonate 175 " LIGHT OR FLUFFY POWDERS.