SCIENTIFIC SUMMAKY. 
221 
Mr. J. G\ Waller, who with equal positiveness asserts that it does not do so. 
Mr. Parfit's paper is published separately, and Mr. Waller’s is printed in the 
January number of the “Journal of the Quekett Club.” Both are of 
interest. We ourselves think Mr. Waller is nearer the truth than the other 
observer ; but the matter must still be considered in some doubt, as very 
many able observers are to be found on both sides. 
A new French Journal of Zoology has commenced its career in Paris. It 
started on January 1 in the present year, and will be published quarterly. 
It is edited by M. H. Lacaze-Duthiers, and is to deal especially with experi- 
mental zoology. It is called the “Archives de Zoologie experimental et 
generale.” 
Australian Polyzoa. — Mr. McIntyre has presented to the Royal Micro- 
scopical Society a splendid collection of the above. They came very 
opportunely, as Mr. P. H. Mac-Gillivray recently read a long paper on those 
found on the Australian coasts. This paper will be found in “ The 
Transactions of the Royal Society of Victoria for 1869.” 
The Aquarium at Brighton. — This promises to be a larger undertaking 
even than the admirable aquarium which Mr. Lloyd so skilfully manages at 
the Crystal Palace. The following is a brief account of the Brighton Aqua- 
rium, which is likely to be open early in the summer. It is taken from the 
“ Daily News” of March 13, which had a long and admirable article on 
the subject. In the bays between the piers supporting the corbels, whence 
spring the groining, are the tanks for fish, of which in all there are twenty- 
eight, the dimensions of which range from 11 feet to 100 feet of frontage. 
The front works of the tanks is composed of Portland stone to a height of 
three feet from the floor, with thick plate glass above, six feet high, and 
cemented into iron columns. The interior of the tanks are being fitted up 
with rockwork of varied character, some consisting of stratified rock from 
Nuthurst, near Horsham, other portions consisting of tufa fantastically 
arranged, and in some of the tanks taking the appearance of caves. The 
water, which in the majority of the tanks will be salt, in a few fresh, will 
be introduced from pipes at the back of the tanks, where also, above the 
water’s edge, are the doors affording access to the attendant for feeding pur- 
poses. But the water in the tanks will reach higher than the top of the 
plate glass frontage, and thus the light which will penetrate into the corri- 
dor will be entirely peraqueous, a property which, in the words of a local 
authority, u will afford to visitors that delightful under- water sensation 
experienced when swimming, and enable them to feel ‘ quite at home ’ with 
the fishes without the inconvenience of getting wet.” At night the tanks 
will be lit from above with argand lamps and powerful reflectors, with 
which the lights in the corridors, springing as they will do from foliated 
mouldings in the corbels, are so contrived as in no way to clash. The 
length of the corridor is 220 feet, but it is broken in the middle by a space 
known as the “ Central Court.” This hall, on either side of which is a 
single large tank, is covered by a raised ornamental iron roof, partly glazed 
with stained glass, the ironwork being painted in bright colours. 
Dust-showers and their Organisms. — A memoir of 150 pages has been 
written on this subject by no less an authority than the veteran Ehrenberg. 
The Professor has in it (published 1871) given a very valuable review of the 
