BOEIC ACID AND BORAX. 



97 



summaries. In the case of Series IV the data for weights are com- 

 plete only in three instances. In Series V there are only three com- 

 plete sets of data extending over the whole period. In each case the 

 summary for each series includes only those individual data which are 

 complete for the whole series. The daily variations in each case are 

 represented by the broken line. The figures given on the left-hand 

 side of the chart are the weights in kilograms, while those across the 

 top are the days of the month. The weight for each day is marked 



FIG. 2. Daily and average body weights for Series I. 



on the vertical line for that day. The number of days, therefore, in 

 each period of the series is represented by the number of spaces 

 included between the vertical lines. Each horizontal line represents 

 1 kilogram of weight. 



In order that a more definite representation of the total variation 

 between the different periods of the series might be brought out, a 

 heavy dark line representing the mean of the variations shown by the 

 broken line has been inserted. 

 4242 No. 84, pt 104 7 



