In November, 1858, my son received an appointment in the Magnetic Observatory at Melbourne, then recently established under Professor Neumayer, on the recommendation of Mr. Ligar, the Surveyor-General.  This gentleman had his eye on him, as he told me himself, to succeed the professor, in the event of his returning to his native country, Germany; and also with the view of his being employed, on attaining a thorough knowledge of magnetic science, in the geodetic survey of the colony.  Such was the progress he made, that Mr. Ellery, superintendent of the astronomical observatory at Williamstown, tried to dissuade him from engaging in the exploratory expedition, when formed.  But notwithstanding the prospect of double pay and less danger, he yielded to his long-cherished desire of being one of the first to reach the Gulf of Carpentaria overland by a direct route, north from Melbourne; and therefore resolved to “set his life upon a cast, and stand the hazard of the die.”

I now give a series of extracts from his letters to his mother, sisters, and brother, written during his residence at the Observatory.  They indicate his character, sentiments, and occupations more distinctly than I could do by rendering them in my own words.  He and his chief boarded together; a great advantage, as it gave him the opportunity, even at table, of conversing on his favourite subjects, astronomy and magnetism.  At times, he feared that he should lose this position.  One cause of apprehension was, that the local parliament would discontinue the grant for the Observatory; another, that superior interest might wrest it from him, as he had not been regularly appointed to the staff by Government, but by Mr. Ligar himself, who had seen, by intercourse with him during the survey, that he was putting “the right man in the right place.”  In a letter to me, December, 1858, he says:  “I hope I shall not have to go into the bush again, I like Melbourne and my present occupation so much.  But everything must be uncertain until after Christmas, as all depends on Parliament voting money for the Observatory.  Should they not allow the necessary sum, I must return to surveying once more.”

. . .

Magnetic Observatory, Melbourne, March 16th, 1859.

My dear mother,

It gave me much pleasure to receive a letter from you by the last mail; but I can assure you that I am always so busy, and the time passes so quickly, that I had almost forgotten to write to you until it was too late, as the mail closes early to-morrow morning.  I am now living at the Observatory, Professor Neumayer having kindly given me a room here, which is a great advantage in many ways.  I hope that Charley will take every opportunity of learning the things I mentioned in a letter to him some time ago, more especially mathematical drawing:  and that I shall see in the next letter I receive from him that he has changed his mind as regards the profession