62 THE AMERICAN MONTHLY [Feb. 



prolonf^ations of the corners of the shell, which form an 

 equilateral triangle with slightly concave sides. 



Dimensions. — Diameter of disk (measured from base of 

 spine to middle of opposite side) 0.21 ; of the outer 

 medullary shell 0.06 ; of the inner 0.015 ; pores 0.005. 



Habitat. — Fossil in the rocks of Barbados. 



Radiolaria from Barbados : a Correction. 



REV. FREDERICK B. CARTER. 



MONTCI^AIR, N. J. 



In the description of a new species of Pentinastrum in 

 the January number of the Journal there were several 

 typographical errors. The name of the species should 

 be Pentacephalum, notPutacephaleun, and U. SP. should 

 be n. sp. (new species). Whereas the patagium is 

 said to be " complete," it should read '' incomplete." 

 And below, "regular pentagium " should be "regular 

 pentagon." 



In the dimensions, the distal breadth should be 0.06, 

 not 0.006. And the habitat should read, Fossil " in," not 

 " on," the rocks of Barbados. 



Parrots Convey Pnuemonia. — Mention has been made of 

 late regarding the spread in Paris of a mysterious disease which 

 was supposed to have been communicated to human beings 

 through some imported parrots. This disease has lately ap- 

 peared at Versailles, and at Maisons Lafitte several deaths have 

 occurred, not only among the purchasers of the contaminated 

 birds, but among their neighbors who had been in contact with 

 them. M. Nocard has now made experiments with the wings 

 of birds which died during the journey from Buenos Ayres to 

 Havre ; fragments of the humeral medulla were placed in a 

 cultivation medium. The next day he detected the presence of 

 a virulent microbe. Fowls, mice, guinea-pigs, and rabbits in- 

 oculated with the microbe died in less than forty-eight hours. 

 A parrot was infected and died from the contamination of wings 

 placed in his cage. — Science Siftings. 



