The remaining three volumes appeared posthumously.
The town library contains about 100,000 volumes, including some valuable examples of early printing.
The first three volumes of Treviranus's Biologie, which contains his general views of evolution, appeared between 1802 and 1805.
In this way he completed the later volumes, which were ready for publication when he died on the 10th of November 1774.
Sheep production, mining volumes, births, crop production, weather patterns... it's all public information reports and numbers.