THE MICROSCOPE. 193 



Of plants there w^re: 



13. Pletirococcus. 



14. Ankistro-desmus. 



15. Fungus spores of various kinds. 



The paper was discussed by the members, but nothing specially 

 new was brought out. 



Under the head of "Personal Work," Mr. Henry Mills^ reported 

 observations upon a new sponge sent him by Mr. Francis Wolle, of 

 Bethlehem, Penn., and which Mr. Mills \\di%ndiVCLQ.d.Meyenia Everettii, 

 it having first been found on Mount Everett, in Mass. It is partially 

 described as follows: 



Found growing attached to weeds and sticks, and on the 

 ground, in shallow water; texture loose, and branching; skeleton 

 spicula, slightly curved, slender, free from spines, sharp pointed, 

 and in length about o.oi inch. Statoblasts globular, and about 0.03 

 inches in diameter. 



Birotulates slender, closely packed radially in outer wall of 

 statoblasts; length varying from 0.002 to 0.003. Head of birotulate 

 stellate, shaft smallest in the middle, not spined. The dermal cover- 

 ing of this sponge contains very minute birotulates, thickly and 

 evenly distributed throughout. 



Dr. W. C. Barrett reported a visit to the Peabody Museum of 

 Archaeology, in Cambridge, Mass., and observations upon organic 

 remains found there, which had been taken from Peruvian mummy 

 tombs. 



Also a visit to the laboratory of Carl Heitzman, in New York, 

 and the result of some observations there made upon blood corpus- 

 cles. He was fully assured that, he said, the appearances which 

 are claimed by Heitzman, Elsberg, and others, as demonstrating 

 the reticulated structures of protoplasm, and that it was not the 

 result of want of focusing, but as he did not assist in the prepara- 

 tion of the corpuscles, he was unable to say whether they were pro- 

 duced by the process employed or not. Upon that point he desired 

 to withhold his opinion until after making careful preparations and 

 observations for himself. 



Prof. D. S. Kellicott said that his pupil, Mr. H. S. Champlin, 



had found Pectinella magnifica living in great numbers upon 



Valisneria spiralis. Authors say this species is found only on old 



ecaying wood. Last year it was found abundant on the stones of 



