220 Scientific Intelligence. 
Vibrios. The same, heated to 300° F., was os to contain 2 
ordinary Vibrios and 1 or 2 black Vibrios. At 400° F. the sugar 
was mostly decomposed sie all life had disappea 
An infusion of hay was similarly treated ; after foutieg to 212°F., 
there were present a few small black Vibrios ; cscs even. after 
heating to 300° F., though a less number. None was found after 
heating to 400°. 212° F, a all the lime matter that 
was before present in the tu 
e life in an infusion of guia ne was slightly decreased * 
100° ae , very largely at 212° F. and had wholly disappeared at 
300 
The infusoria in putrid meat fluid were but slightly affected at 
100° F. ; at 212° F. a small part remained alive but inactive, the 
liquor becoming turbid and coagulated ; at 300° F., a few Vibrios 
were alive, the small — ones the most numerous ; at 400° F. 
all ag had ang 
In each case the Ellie were examined 24 days after the 
heatin ss The ‘Sapalte show that infusorial vegetable life of some 
i ae Mey survive a temperature of even 300° F., but not of 
At 15° F. the infusoria became languid, but with an increase of 
aerperamre ane they were as active as ever. 
schnikoff on the affinities of Crinoids.—Metschnikot, 
to ae we owe so many valuable embryological investigations, 
has published preliminary notices* of the early stages of Coma 
tula which are of the utmost importance, as they throw an ei 
had been previously written by Busch, Allman and Thomson, °? 
the early a sh of Comatula, giving no data whatever bearing 
has always been homologised with the water-system 0 
Echinoderms is Gevslooad in a Sig 5 different manner. In the free 
omatula larva the bag-like digestive sac is the 0 
organ developed, it omes the digestive cavit the adult 
after the larva attaches itself to the ground. He noticed the 
tentacles as diverticula of the digestive sac in th rior of 
arva ; these subsequently force their way through to the exter! 
at the time when the di ve ba further 
tiated, and is preriien with a mouth opening in the center of 
oval disk, and an anus opening not far from it on the or 
* Bulletin Acad. St. Per tad Xv, p. 508, amas 1871. 
