As a student he set up a little laboratory and dissecting room in his lodgings, and his injections of anatomical material were greatly admired.
Professor Karl von Bardeleben, himself one of the great teachers of the nineteenth century, did not hesitate to say that in this Hyrtl was unequalled.
He told us that since that great shock his nerves have been so susceptible that he sheds tears at the most trifling events, and has a depression of spirits which often keeps him silent for days.
In this he argued that there was clear lack of logic in the materialistic view of the world and concluded: "When I bring all this together it is impossible for me to understand on what scientific grounds is founded this resurrection of the old materialistic view of the world that had its first great expression from Epicurus and Lucretius.
[1] In 1880 there was a magnificent celebration of Hyrtl's seventieth birthday, when messages of congratulation were sent to him from all the universities of the world.
After retiring from his professorship he continued to do good work, his last publication being on Arabic and Hebraic elements in anatomy.
His monograph for the reform of anatomical terminology Onomatologia Anatomica (Vienna, 1880), attracted widespread attention.