280 Scientific Intelligence. 
The award of these prizes will be subject to the following regu: 
_ ons: 
. The prize will be given only i the first eight comets dis- 
ered in each of the three years named, and only for such 
deur as are telescopic at time of didecvery. that is, invisible to 
the naked eye. e comet must not have been before seen by an- 
other observer, and must be one whose appearance could not se- 
curely be predicted. 
2. The discovery must be communicated immediately and with- 
out waiting for further observations, to the Imperial Academy of 
Sciences, by telegraph if practicable; and otherwise by the earliest 
st. e Academy undertakes to transmit the news immedi- 
ately to other observatories. 
. The time and place of discovery with the plan and yer of 
the comet must be given as exactly as possible with the first no- 
tice. This first notice is to be supplemented by such later ahaa 
vations as may 
4, If the dieateecer should be confirmed by other observers the 
rize will not be awarded unless the ee of the discoverer 
segs for the determination of the 
. The prizes will be awarded in the general meeting of the 
Academy held at the end of May of each era In case the first 
a ee ee ee 
Later applications will not be considered. 
7. The Imperial Academy will procure the decision of the per 
manent aireiontiets of the Observatory at Vienna as to the ful- 
filment of the conditions in Nos. 1, 3, and 4. 
2. On the Phenomena of Light, Heat, and Sound nee P 
ing the fall of Meteorites ; by W. Ritrer v. Hamwrexr, For 
Mem —A particular incident caused me to return to some 
portions of my earlier studies in regard to meteors and mete 
orites, 
forming the meteorite collection in our Imperial Mineralogical 
A series of reports on meteorites followed, as well as 2 
al 
