
608 REVIEWS. 
duced forty per cent. of mostly well-shaped brood, but a part became 
sities een, fecundated by the Salvelin, it developed no embryo 
at all! e spawn of a (presumed) hybrid of the trout and Salvelin, 
Rar with the milt of a vigorous male trout, also e quite a nega- 
tive result. You will agree with me, that experiments of this sort, con- 
ducted with the author’s skill and profound practical eae of the 
matter, are of a high sis Pt Professor Kjerulf has gathered all 
the available evidence concerning the earthquake felt over almost all 
Norway, an m Shetland = Pastime at the Botnio, on the night of 
May 9th, 1866. The memoir of the celebrated Norwegian geologist 
. abounds with details, allowing of no abstract; I therefore must restrain 
myself to mentioning that the shock was felt from Bodo (north) to Lange- 
sia (south), one hundred and thirty geographical miles, and radiated 
from a point situated at the south-west of Christiansund, with a veloc- 
ity of six and two-thirds to seven and three-fifths geographical miles to the 
minute, but lasted at each spot only two minutes at the utmost. In the 
later volumes of the Proceedings of the Christiania Academy (known to 
me only from separate copies of the paper mentioned below, kindly sent 
to the writer), Mr. Collet has given a full topographical list of the Birds 
of Norway, summing up their distribution in the country, when and where 
they were Pores, etc. Two hundred and forty-eight species are enume- 
rated. Professor M. Sars has published short notices about some e Celen- 
terata (coral aa jelly fishes, etc.) and Echinodermata (starfishes, etc. )» 
from the Lofoten Isles, i. e., Thyonidium scabrum (new species), Holothu- 
ria natans (new species), D ooko Gt Corymorpha (Amathea) Sarsit 
and Isidella (new genus) Lofotensis. H. natans is distinguished by posses 
sing the faculty of swimming, with a eee motions, in a vertical direc- 
tion. Jsidella, igo a ral, was found at the — depth o foe 
three millimetres thick showed that it wisi much larger. Dr. a 
has described two species of a new Bryozdon genus, Kinetoskias, fou 
at Nordland and Finmarken, remarkable for aged faculty of moving eset 
tarily the branches (connected by a membrane) of its. polypary, apra 
ing them in the shape of an umbrella, or closing them together into @ a 
(according to Dr. Smitt, whose work on the Bryozoa will be re referred to 
afterwards). Kinetoskias arborescens D., is a species of Bugula (B. u™- 
brella Smitt N 
. Professor Sats has published a little volume of Contributions to ps 
Fauna of the Bay of Christiania, with descriptions and plates of gi 
little known Crustacea (Crangon, Pasiphaë, etc.). His 80 n, Mr. 
dso u 

