ORGANS OF XUDir.RANCHIATA. 349 



EXPLANATION OF TEXT FIGURES. 



Schematic representations of the reproductive organs of Doto fragilis 

 (,Fiy- I). Cahiia caz'oliiiii ( F""ig. 3). Bcri^hia (Fig. 4), Tritoma fylrbcia 

 (Fig. 5). Fig. 2 is a representation of the slime and albumen glands of 

 Doto fnii^ilis. 



A Alale aperture; B, female aperture; C. entrance to slinie gland; 

 D. entrance to albumen gland ; E. prostata : F, oviduct : C'7. ampulla ; H. 

 reccptaculum seminis ; K. hermaphrodite duct; M, fertilising chamber; 

 A', ductus ejaculatorius ; 1', entrance of oviduct into albumen gland; 

 Z- penis. 



Comets of I9II. — Tlie Cuuncil of the Royal Astro- 

 nomical Society, in its Report to the 92nd Annital Meeting of 

 the Society, states that the ohservations of three comets seen 

 in igio were prolonged into 1911. Of these. Halley's was 

 ol)served at Helwan up to ]\lay i8th. and at Yerkes, Lick, 

 and Flagstalt nntil the heginning of Jime. Metcalf's was fol- 

 lowed up to the beginning of May, and Faye's periodic comet 

 was seen at Algiers up to ^Nlarch, 191 1. The number of comets 

 discovered during the year, including the periodic comets whose 

 po-jtions could be indicated with more or less . precision, is no 

 less than eight. Tn addition. Dr. Franz of Breslau announced 

 that on July 22nd he saw a nebulous object with a rapid motion, 

 which he believes must have been a comet near the earth. It 

 was of the seventh magnitude, increased three minutes in right 

 ascension during six minutes of time, and was never seen again. 





