Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
40 May 6 D.C.
Miller and Hollister have just shown me Skulls treated with paraffin (ordinary commercial kind that comes in blocks), melted, to keep teeth from cracking and prevent decomposing or weak skulls from flaking. They believe in this paraffine method as thoroughly reliable.
Skulls up to life size are put in wire baskets and lowered into a tank of melted paraffine & left there two days (or less, if teeth are not important - until air bubbles quit rising). The paraffin is of course surrounded by a water bath kept warm by an electric coil. The skulls acquire about one-third additional weight in paraffine and become yellowed, but are firm and are proven to henceforth