108 JOURNAL OF THE [[ulXr 



4. Comma bacilli of Cholera Asiatica. 



5. Spirilli oi- Cholera nostras. 



6. Pneumonia micrococcus. 



7. Anthrax bacillus. 



8. Anthrax bacillus in blood of mouse. 



Meeting of March 6th,- 1891. 



The President, Mr. P. H. Dudley, in the chair. 

 Eighteen persons present. 



. Mr. T. F. Smith, F.R.M.S., of London, England, was elected 

 a Corresponding Member of the Society. 



OBJECTS EXHIBITED. 



I. Shell of Common Shrimp, Crang^on vulgaris Fab., showing 

 pigment cells in under layer : by L. Riederer. 



2 Pollen in honey of the Hive-bee, Apis iiieiiijica 'L.'.hy 'L. 

 Riederer. 



3. The fungus, Pestalozzia ifisideiis, n. sp., on Ulmiis Ameri- 

 cana L. : by J. L. Zabriskie. 



4. The fungus, Pestalozzia tre/ueiloides, E. & E , on Viiis sp.^ 

 by J. L. Zabriskie. 



5. Ash block from Colon, S. A., containing living specimens of 

 Caiotertnes flavicollis F., sent by Mr. J. Beaumont : by P. H. 

 Dudley. 



6 A ruling on glass by the late Charles Fasoldt, with bands from 

 5,000 per inch to those said to be 200,000 per inch: by P. H. 

 Dudley. 



7 0x2 from Chihuahua, Mexico, containing iron, silver, cop- 

 per, lead, and zinc: by H. W. Calef. 



Mr. Anthony Woodward, chairman of the Committee on An- 

 nual Reception, reported progress, explaining the extended work 

 of the Committee in their endeavor to make provision for a credi- 

 table reception. 



Mr. Riederer explained his exhibits as follows : 

 I. Shell of the Common Shrimp, Crangon vulgaris Fab. Some 

 crustaceans, like some amphibians, fishes, and cephalopods, have 

 cromatophores, or pigment-cells. I have found only brief notes 

 concerning such pigment-cells in crustaceans, and therefore make 

 this statement respecting amphibians and cephalopods. 



