124 
Terrestrial Magnetism . 
* Kammammi . Mother’s mother. 
Kammilya. Grandchild to ditto. 
Talyerla. Unknown—answers to Marnna. 
Ngauwadli. U nkno wn. 
There are no words expressing relationships more 
distant than the second degree. Ancestors are called 
Bukldana meyu —ancient men. 
Art. V. Terrestrial Magnetism. By Lieut. J. H. Kay, 
R.N., H.M.S. Terror, Magnetic Observatory, Hobart. 
This paper has been written at the request of His 
Excellency Sir John Franklin, and is intended to give a 
short and simple account of the progress made in the 
science of Terrestrial Magnetism, from the earliest 
period down to the present epoch. At a period when the 
investigation of magnetic phenomena occupies so large a 
portion of public attention, it may be interesting to offer 
a slight sketch of its history; glancing at the theories 
of former times, and explaining more fully the princi¬ 
ples upon which has been based the system of observa¬ 
tion which is now actively in operation ; and the writer 
feels that the only apology lie can offer for intruding upon 
the time and attention of the Society, is his natural 
anxiety to contribute his mite towards the furtherance of 
those unpretending, but it is hoped not undeserving, 
objects which the Society has in view. 
The subject selected is one to which the attention of 
all the scientific men in Europe is most especially 
directed at this moment; and the writer trusts that, in 
consequence, it will meet from this Society with sea¬ 
sonable and kind indulgence. Of course all merit for 
originality is entirely disclaimed. 
