Dating the dent site
In September Father Bilgery excavated some of the bones with his students, identifying them as mammoth.
The Clovis point was the first use of large, symmetrical and fluted projectile points. The site was notable for both the presence of the projectile points larger than the known Folsom points and one of the first direct pieces of evidence that man and mammoth co-existed in the Americas.
Radiocarbon dating was performed again, with dates 10,590 /- 500 years before present and 10,950 /- 480 years before present, at the low end of the estimated range from 1973.
Dent also made probably the most famous clock in the world - the Great Clock for the Houses of Parliament, familiarly known as Big Ben.
Dent constructed the first Standard Astronomical Clock for the Admiralty in setting a precedent for the company to supply Standard Clocks to countries such as Switzerland, Italy, Spain, Brussels, Russia and as far afield as the USA and Japan throughout the 19th century. On one occasion a complete juvenile mammoth skeleton was assembled from bones of different animals and traded to a Cleveland museum.
Throughout the volume, emphasis is placed on the relationship between research goal and measurement.