no FIELD MUSEUM OF NATURAL HISTORY 
resenting them magnified about 2300 times. Next in order are 
the Porifera or Sponges. These include some interesting forms 
such as Neptune’s cup, the Glass-rope sponge, Venus’ flower 
basket, etc. On the other side of the case are the Millepores, 
and Stylasters, and models representing the Jelly-fishes — such 
as the Portuguese Man of War. 
Case 2. — Contains representatives of the Alcyonaria (Eight- 
rayed Polyps). This group contains the Sea -fans. Sea -feathers. 
Organ-pipe Coral and Red Coral. These are continued in Case 3 . 
Cases 3, 4, 5 and 6. — Contain the Zoantharia, which in- 
cludes the Sea-whips, the Sea Anemones, and the Stony Corals. 
At the end of Case 6 are a few models representing the Cteno- 
phora or Comb-bearing Jelly-fishes. 
Cases 7 and 8.— Contain part of the Echinodermata, which 
includes the Crinoidea (Sea Lilies, etc.); the Ophiuroidea (Brit- 
tle Stars and Basket Stars) and part of the Asteroidea (Star 
Fishes) . 
Case 9. — Contains the Echini (Sea-urchins); and Holo- 
thuria (Sea Cucumbers). 
Cases 10 and ii. — Contain the Vermes (Worms); and 
Crustacea (Barnacles, Lobsters and Crabs). 
STUDY COLLECTIONS. 
The study collection of Mammals, Fishes, Reptiles and In- 
sects, consisting of thousands of specimens contained in tin, air 
tight cases and glass jars, is located in the balcony over the 
south entrance, and is accessible during museum hours to those 
who may desire to study the material or compare specimens. 
Every attention is paid to this important adjunct to the exhi- 
bition series, for the assistance of scientific investigation. The 
study collection of bird skins containing between thirty-five 
and forty thousand specimens is installed in the gallery of Hall 
27. 
