-Doc. 895. 



Plate III. 



FIG. 1. — PONDS FOR FISH-CULTURAL EXPERIMENT WORK. 



Part of the equipment used for fish-cultural experiment work. Iii these ponds we learn how 

 to rear buflalolish and catfish, and how to make ponds more productive of black bass, bream, 

 and other esteemed game fishes. Mussel culture, too, Is practised in these ponds. 



FIG. 2.— A SIMPLE FISHPOND. 



This pond, a quarter of an acre in extent, simulates tlie natural conditions of a farm pond 

 receixiuK minimum attention. Being stocked with generally esleeined lislies, it is intended to 

 answer the question: Wliat will a small pond yield without special attention? 



