This section is from the book "The Corner Cupboard; Or, Facts For Everybody", by Robert Kemp Philp. Also available from Amazon: The Corner Cupboard; or Facts for Everybody.
Tortoiseshell (To Mend). Bring the edges of the pieces to fit each other, observing to give the same inclination of grain to each; then secure them in a piece of paper, and place them between hot irons or pincers; apply pressure, and let them cool. Take care that the heat is not too great, or it will burn the shell.
 
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