In part because of these disappointments , Halbertsma balanced on the edge of a burn - out for a long time .
Especially in 1839 , when Halbertsma was passed over yet again , Halbertsma went through a deep crisis .
In part because of these disappointments , Halbertsma balanced on the edge of a burn - out for a long time , and especially in 1839 , when he was passed over yet again , he went through a deep crisis .