No. 421.] MUSEUM TECHNIQUE. 61 
just as in the case of the cast-glass boxes. The idea of repre- 
senting a fish in a museum in a fluid so that it “appears, to the 
visitor at least, as a living fish in water” is an excellent one. 
Following out this idea, our exhibition vessel partakes somewhat 
of the nature of an aquarium. A well-constructed aquarium 
needs but one glass side, and this side should be polished plate 
glass. It is necessary to make a joint between the material 
used and the plate glass which will not be effected by changes 
of temperature, and this presents no serious difficulties. 
We have not tried the painting of fishes or fastening them in 
the vessel by means of gelatin. The use of round or oval glass 
bottles has been, within the past few years, quite universal. 
But both of these bottles are objectionable, because in them the 
fishes must stand on head or tail, and besides suffer more or less 
distortion. Among fishes are many peculiar and interesting 
forms, and this class ‘of animals are as deserving of suitable 
methods of exhibition as are the other classes. 
The time has certainly come when some method which will 
permit fishes to be placed in our museums as lifelike as possi- 
ble, and one which will be economical and durable, will be much 
appreciated. If those who are interested in this question, and 
who have given it some attention, will publish the results of 
their experiments, it is possible that enough good features can 
be selected to discover the proper method. 
