ON DISTRIBUTION. 
25 
one vessel, and not to allow the sun to shine upon 
the water, or else it soon gets thick and green. If 
properly arranged, with a few sprigs of water weed 
growing in it, the water will remain clear and bright 
for months. 
It would be a great boon if a fresh-water aquarium 
on a large scale, similar to the marine aquaria that 
have lately been established at home, at Brighton and 
other places, could he set up in India. The great 
variety and beauty of the Indian fishes would then be 
appreciated ; and valuable results might ensue in re- 
lation to the importance of fish as a food supply, a 
subject which Dr. Day has lately been investigating 
on behalf of Government. 
