After changing his opinion about Altamira, he became one of the founders of the studies of the cave art and one of the scientists (together with e. g. Henri Breuil) who recognised its importance.
He received his education at the Seminary of St. Sulpice and the Sorbonne, and was ordained in 1900, and was given permission to pursue his research interests.
Henri Breuil interpreted the paleolithic cave paintings as hunting magic, meant to increase the number of animals.
In 1929, Maack's notes came into the hands of the well-known French anthropologist Henri Breuil while he was visiting Cape Town.
Henri Matisse | Henri de la Tour d'Auvergne, Vicomte de Turenne | Bernard-Henri Lévy | Henri Dutilleux | Paul-Henri Mathieu | Henri Poincaré | Robert Henri | Henri Mignet | Henri Cartier-Bresson | Henri Fayol | Henri Bendel | Henri Barbusse | Jean-Henri Fabre | Henri-Pierre Roché | Henri Langlois | Henri, Grand Duke of Luxembourg | Henri Fantin-Latour | Paul-Henri Spaak | Jacques-Henri Bernardin de Saint-Pierre | Henri Wallon | Henri Vieuxtemps | Henri Vernes | Henri Salvador | Henri Pousseur | Henri Michaux | Henri Guillaumet | Henri Estienne | Lycée Henri-IV | Henri Tajfel | Henri Sauguet |