422 
BULIvETiN OP THE 
BUREAU OF FISHERIES. 
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Note — S pecial determinatiou of iodine and bromine on is-liter samples from Craig Brook station, summer of 19x0. Farmhouse spring •water: Iodine, i part to 1,250,000.000 of 
water; bromine, i part to 142,800,000 of water. Craig Brook water: Iodine, 1 part to 1,310,000,000 of water; bromine, i part to 149,000,000 of water. Ratio of iodine to bromine: i to 
8.7 in each case. 
