§ 9. Four years later he determined to start other institutions in connexion with the parent institution at Keilhau; and being offered by a private friend the use of a castle on the Wartensee, in the canton of Lucerne, he left Keilhau under the direction of Barop, and with Langethal made a settlement in Switzerland. The ground, however, was very ill chosen. The Catholic clergy resisted what they considered as a Protestant invasion, and the experiment on the Wartensee and at Willisau in the same canton, to which the institution was moved in 1833, never had a fair chance. It was in vain that Middendorff at Froebel’s call left his wife and family at Keilhau, and laboured for four years in Switzerland without once seeing them. The Swiss institution never flourished. But the Swiss Government wished to turn to account the presence of the great educator; so young teachers were sent to Froebel for instruction, and finally he removed to Burgdorf (a town already famous from Pestalozzi’s labours there thirty years earlier) to undertake the establishment of a public orphanage, and also to superintend a course of teaching for schoolmasters. The elementary teachers of the canton were to spend three months every alternate year at Burgdorf, and there compare experiences, and learn of distinguished men such as Froebel and Bitzius. § 10. In his conferences with these teachers Froebel found that the schools suffered from the state of the raw material brought into them. Till the school age was reached the children were entirely neglected. Froebel’s conception of harmonious development naturally led him to attach much importance to the earliest years, and his great work on _The Education of Man_, published as early as 1826, deals chiefly with the education of children. At Burgdorf his thoughts were much occupied with the proper treatment of _young_ children, and in scheming for them a graduated course of exercises modelled on the games in which he observed them to be most interested. In his eagerness to carry out his new plans he grew impatient of official restraints; and partly from this reason, partly on account of his wife’s ill health, he left Burgdorf without even actually becoming “Waisenvater” (father of the orphans).[174] After a sojourn of some months in Berlin, where he was detained through family affairs, but used the opportunities thus afforded of examining the recently founded infant schools, Froebel returned to Keilhau, and soon afterwards opened the first _Kindergarten_, or “Garden of Children,” in the neighbouring village of Blankenburg (A.D. 1837). Not only the thing but the name seemed to Froebel a happy inspiration, and it has now become inseparably connected with his own. Perhaps we can hardly understand the pleasure he took in it unless we know its predecessor, _Kleinkinderbeschäftigungsanstalt_.