'22 
CELLOIDIX IMBEDDING— 
Fix. 
Dehydrate. 
Clear. 
Prepare a thin celloidiii solution containing 4 per cent celloidin in equal parts of 
absolute alcohol and ether; preserve celloidin solutions carefully from moisture. 
Prepare a saturated solution in the same solvent. 
Transfer tissue from absolute alcohol to equal parts of alcohol and ether. 
From alcohol and ether to thin celloidin. 
From thin celloidin to thick celloidin. 
From thick celloidin to paper mold on vulcanite block. 
Into 70 per cent alcohol for three days to harden. 
Cut section with knife flooded with 80 to 85 per. cent alcoliol. 
Preserve in 80 to 85 per cent alcohol. 
Stain. 
Dehydrate. 
Clear. 
Blount. 
