From the December 1, 1922 New York Times:

“Paris–Walter Finker, the Viennese biologist, has succeeded in transplanting the heads of insects. Before the Academy of Vienna yesterday he gave an account of his operation and the results, about which the Matin‘s scientific editor says ‘if true it means a real revolution in the science of physiology and biology.’

The Matin adds:

‘This discovery is so astonishing that before discussing it we must make all possible reserves.

‘Finkler took a series of insects–butterflies and caterpillars–and with fine scissors cut their heads off. He then immediately grafted these heads onto which [another] head had originally belonged. After a few weeks the insects operated on began to recover, but to the intense surprise of the professor the newly formed insects began in every case to assume the characteristics of the heads which had been grafted on to them.

‘Bodies lost their original color and took the color of the insect whose head they were wearing. A female insect on to which a male head had been grafted became a male. 

‘Not only did the professor succeed in changing the heads of insects and larvae of the same species, but he grafted the heads of one species on to another, an operation hitherto considered quite impossible.”