THE NAUTILUS. 



on trees stocked with the snails without injury to the colony, for, 

 although protected by the shell from the immediate effect, sufficient 

 spray probably clings to the sooty mould on which they feed to de- 

 stroy them. The beneficial parasitic fungi and the snails may be 

 allowed to work together on unsprayed trees. The snail is here 

 spoken of as the Manatee snail since while recorded as occurring in 

 other parts of the State it was found working on the orange groves 

 first in the Manatee region. 



NOTES. 



Collecting in the Everglades. I have recently returned from a col- 

 lecting trip in the Everglades. Most of the collecting was done at a 

 point where the Big Cypress Swamp and the Everglades meet, about 

 80 miles from Myers and 35 miles from Jmmokalee P. O. Drymaeus 

 dominicus Reeve was found in the air-plants. Dead shells of Glandina 

 truncata var. minor, were plentiful, but live ones scarce. A few 

 Zonitoides arboreus were also found in air-plants. Polyyyra cereolus 

 var. carpenteriana and uvulifera I did not collect. Beautiful speci- 

 mens of the glossy, dark, amber-colored Physa cubensis Pfr., were 

 found on the under side of the leaves of water plants. Planorbis 

 intercalaris Pils., and P. tumidus were very plentiful, the latter in 

 the more shallow water. Ancylus peninsulae Pils. & Johns., was 

 found on decayed wood in the Cypress Swamp. Atnpullarin depressa 

 is abundant on the edge of the Everglades. The shells are heaped 

 around isolated cypress trees, where they are dropped by the 

 hawks which feed upon them ; a bright yellow variety without bands 

 is occasionally found. A small Utiio was common in a stream near 

 Immokalee. A. G. REYNOLDS. 



OUTPUT OF AMERICAN PEARLS Dealers in American pearls 

 state that the past season showed a diminished output of fine gems, 

 but a gain in the traffic in baroques or pearl formations of irregular 

 shapes. 



The most valuable pearl discovered last season was taken from the 

 "Wabash river, near Mount Carmel, 111. This was a pink-white gem 

 of eighty grains, and is valued by its owner at $8000. 



A pearl valued at $5000 was found in a mussel shell taken from 

 the Skillet Fork river, Carmi, 111. Other pearls, worth from $500 

 to $3000, were found last year ; but such fortunate discoveries were 

 considerably fewer in number than in former years. 



