supply of instruments for the department of environmental science at nabadwip vidyasagar college, nabadwip, nadia.- 1 refrigerator 2 uv-vis spectrophotometer 3 camera 4 digital balance 5 shaker 6 stereo microscope 7 distillation unit 8 gps device 9 micropipette 10 tongs 11 volumetric flask 12 mirror stereoscope 13 rain gauge 14 anemometer 15 dry and wet bulb thermometer 16 barometer 17 secchi disk