There is much to be done from the moment the skeleton is dissected to the time the bones are finally mounted. Sometimes these tasks are very time-consuming; eleven months were required to prepare the skeleton of “Sysonby” for exhibition.
The writer had an opportunity to witness a part of the preparation of the skeleton of the trotter “Lee Axworthy,” listening the while as Mr. Chubb explained the process in progress at the time. Mr. Chubb was seated at a long table busily engaged in scraping from the sternum of the skeleton fragments of flesh and soft tissue that still adhered to the bone. Near him on the floor were several jars containing water in which were immersed various parts of the skeleton.
“I save the sternum or breastbone for the last,” he said, “because it requires more time. The bones are connected with ligaments and tendons which must be removed before the actual cleaning and dryin can proceed. To hasten the decomposition of the soft tissues, the bones are placed in vessels containing water that is kept at 100 degrees.
“When sufficiently decomposed the ligaments and tissues are removed and all that remains after dissecting is scraped away as clean as possible. If the surface of the bone dries too rapidly, it contracts and splits, while the inside is still wet. Slow drying is preferable and will prevent such injury by permitting the entire substance to dry evenly. The next step is to free the bones completely from all grease, that they may become spotlessly clean and pure in color before they are articulated.”
Immersing the bones in benzine and exposing them while in this medium to daylight and sunshine for a number of weeks will accomplish the desired result most successfully. Under Mr. Chubb’s supervision tanks have been constructed of galvanized iron. Around the upper edges of each tank are special grooves into which slides a close-fitting cover of glass, effectively sealing the tank against the entrance of rain water and at the same time preventing evaporation of the benzene. The bones are put in the tanks and covered with benzine, the glass covers are moved into place, and the tanks are then carried to the roof of the Museum, there to remain in the sunshine until the bones are pronounced ready for the next step. The benzine must be changed two, three, or possibly four times during this period, because it becomes saturated with the grease and loses its efficacy, and the bones easily get discolored, gummy, and dirty if left too long in the greasy benzene. The whole process may take from six to eight weeks, depending on the amount of sunshine and the size of the bones.