18 
Proceedings of the Royal Society 
ing through, to the nasal surface, anatomists have believed and 
taught that the human upper jaw represented both the superior and 
intermaxillary hones in any other mammal. Where a question in 
human embryology hinges upon an examination of parts in a very 
early stage of development, we often have to wait for many years 
before an appropriate specimen falls into the hands of a competent 
observer. 
This paper will appear in extenso in the Journal of Anatomy and 
Physiology , Jan. 1885. 
4. Apparent Lines of Force on passing a Current through 
Water. By Thomas Andrews, F.R.S.E., F.C.S., Wortley 
Iron Works, near Sheffield. 
The author has recently been engaged in a variety of electrical 
observations in connection with wrought iron and steels, in the course 
of which it occurred to him to investigate some of the effects produced 
in the presence of nascent oxygen, of the ozone type, by a current 
of sufficient strength to readily decompose these metals by oxidation 
whilst immersed as electrodes in distilled water, the great resistance 
of the latter apparently facilitating the interesting results observed 
and recorded below. An average of ten determinations gave the 
resistance of the distilled water used as 48,234 ohms, and in the 
following experiments, the current from forty small Leclanche cells 
was employed. The current was passed through distilled water 
contained in a beaker (the distilled water was tested for impurities, 
hut was found free from everything except the faintest trace of 
chlorides), using two round electrodes of the same bright metal 
tWo bich diameter by 2 inches long, suspended as shown in the 
sketch on page 20 (2 inches apart). Hydrogen was rapidly given 
off at the kathode B, whilst there, at first, slowly exuded from 
the anode metal A, faint clouds accompanied by long fine streaks 
of ferric hydrate, which gradually increased in quantity until in 
about fifteen minutes the whole of the water presented a yellowish 
turbid appearance, and flocculent masses of oxides began to subside 
(these were of course reduced to protoxide near the evolved 
hydrogen from the other electrode B). The circumstance, however, 
to which the author desires to call attention is the seeming 
