Astronomy and Geodesy. ATT 
from melting i ice which is used for cooling drinking-water. From 
time to time, am some sediment taken from a water-cooler, 
the gentleman had observed what he supposed to be living worms, 
he suspected were introduced wit e water into the 
cooler, and not with the ice. Upon melting some of the ice alone, 
the worms were still observed, and the water submitted for 
examination was some that was thus obtained. Professor Leidy 
was surprised to find a number of worms among some flocculent 
Hoare the worms there were also immature Anguillulas, and a 
of Rotifer vulgorite all living. It would appear that 
eae sntiale had all been contained in the ice, and had been 
liberated on sialttag. It was an unex ected source of contami- 
=] 
supposed to be very *iniprobable. The little worms ew no 
familiar with. They belong to the family of se ahah, wid Bie 
e an undescribed species of Zumbriculus. The e white, or 
colorless, from 4 to 6 millimeters long, by a third af i a ( utiiintee 
in thickness, The ar Bs is ‘gdtiast into thirty segments, bearin 
h th 
odal spines, which f ows, wit ree in each fas- 
ciculus, and di oone Othe, cpiites are curved at the root, 
pointed at the free end, and measure 0°05 06 mm. long. The 
upper lip is blunt conical; the terminal segment truncate. There 
appears to be no distinct girdle, but the third, fourth and fifth 
segments contain ie eg tig glands and other organs pertain- 
ing to the sexual appar 
Several dead worms swarmed in the interior ig large, ovate, 
beaked, ciliated infusorians measuring from 0°5 to 0°6 mm. long 
by 0-04 to 0-048 mm, broad.—Proe. Acad. Neg Sei. Philad., 
1884, p. 260. 
ITV. ASTRONOMY AND GEODESY. 
1. Report of Observations made on the Expedition to Caro- 
line id . observe the Solar Eclipse of May 6, 1883; 
4. 
series of observations by three different methods on the Sola 
radiation. In regard to the last point, the author remarks: 
“The follo Bien pcre gives the conclusions derived from an 
examination of t 
The cue of ihe ‘black and bright bulb pig ee 
freely exposed in the air gives only an approximate determ 
tion of the solar inter ot This was expected, and is due to ‘the 
precept oh varying os. eo ons of, exposure, caused by the effect 
of the winds on convection currents. 
(2) Violle’s bulbs : are affected by convection, but the effect is 
shown less than in freely exposed thermometers, on account of 
