© C. Degueurce - library at the École nationale vétérinaire de Maisons-Alfort

Plate from the Course on Hippiatrics by Philippe-Étienne Lafosse, 1773

Lafosse was clearly more competent than Bourgelat but did not enjoy his network. Above all, he looked to create a school of hippiatrics when his elder rival realised that the goal of the royals was to create a veterinary school working with animals of agriculture and not just the horse. Bruised by the success of Bourgelat, Lafosse published his exceptional Course in 1772, which was decorated with beautiful watercolour plates that relegated Bourgelat's works to the level of austere treaties.