170 Abstracts of Foreign Memoirs. 
2. Auszug aus der Denkschrift des Herrn Alphons Milne-Edwards 
iiber die eeologische Vertheilung der fossilen Vogel. Zusammenge- 
fasst von Herrn A. Fr. Grafen Marschall. An abstract of this paper 
has been already given in the GroLocicaL MaGazinr, No. 2. 
3. Chemische Untersuchung einiger Gesteine von Java. Von 
Herrn Otto Prolss. This contains analyses and descriptions of some 
voleanic rocks from Java, by a young Heidelberg doctor, a pupil of 
Blum and Bunsen. 
4, Der Erloschene Vulkan Ringgit in Ost-Java und sein ange- 
blicher Ausbruch 1586. Von Herrn Emil Stohr. (The Extinet 
Volcano Ringgit, in Eastern Java, and its pretended Hruption in 
1586.) In this paper the author attempts to prove that the eruption 
of this extinct volcano, asserted by Houtman to have occurred in 
1586, and to have caused the death of 10,000 people, did not really 
take place; but that an eruption of the Raun Mountain, which is still 
active, occurred in that year, and was mistaken by Houtman for an 
eruption of the Ringgit. 
In a letter, Dr. J. A. Roemer gives a sketch of a new classification 
of the Sponges, which he is about to use in his forthcoming Mono- 
graph of the North-German Cretaceous Sponges, to be published in 
the ‘ Paleontographica,’ illustrated by 18 plates. ‘The numbers after 
the genera indicate the number of species. 
1. Family Coeloptychidea, C. Jereidea, 
1. Coeloptychium, 6. 23. Jerea, 18. 
2. Camerospongia, he 24. Polyierea, 6. 
3. Cephalites, 8. 25. Marginospongia, 1. 
S Cystispongia, 7. 4. Family Lamnoreidea. 
5. Porospongia, 2. 26. Limnorea, 4. 
6. Lepidospongia, 1. 27. Epeudea, 1. 
2. Family Cribospongidea. 28, Epithebes, 4. 
29, Polenydostoma, 3. 
50. Endostoma, 2. 
31. Tremospongia, 4. 
7. Cribospongia, 17. 
8. Coscinopora, 8. 
9. Pleurostoma, 7. 
10. Retispongia, 4. 82. Actinospongia, a 
11. Oscillaria, 12. 38. Bnaulofungia, 3. 
12. Ventriculites, 10. 34, Lecospongia, 3. 
13. Dendrospongia, 3. 5. Family Chenendoporidea. 
14, Cylindrospongia, 11. 35. Chenendopora, 12. 
15, Diplostoma, 6. 36. Verrucospongia, 4. 
i 5 : 37. Elasmostoma, 5. 
3. Family Siphonidea. ¢ 
iN Endeide. a 6. Family Sparsispongidea. 
. Monothebes, 2. 
16. Hippalimus, 2. 39, iissetee, 
17. Placospongia, 4. 40, Oculispongia, 4. 
18. Eudea, 3. 41, Stellispongia, 10. 
. Siphonia, 5. 
B. Siphonocechdea. 
. Siphonoceelia, 14. 
7. Family Amorphospongidea, 
. Copulospongia, 15. 
. Meeandrospongia, 4. 
21. Polyccelia, 10. 44, 'Thalamospongia, 1. 
22. Hlasmoccelia, 2. 45. Amorphospongia, 12. 
H.M. J. 
