TESTIMONY OF HENRY MORTON. 103 



instance, correct what I conceive to be an error ; that is the state- 

 ment that the lactometer will not detect the addition of twenty 

 per cent. 



Q. I said 15 per cent. ; A. I beg your pardon. 



Q. When a cow's milk stands at 120, how much water may be 

 added without being detected by the lactometer ? A. If a cow's 

 milk stood at that degree in the first instance and we added any 

 water to it, more than perhaps one or two per cent., the lactometer 

 would detect it. 



Q. Did you not hear Dr. Chandler testify upon the stand that 

 good milk standing at 120 will bear the addition of 16 or 17 per 

 cent, of water without going below 100 ? 



(Objected to on the ground that in the testimony there were a 

 number of lactometers ; objection overruled.) 



A. I cannot from memory assert one or the other. 



Q. Is your memory bad, Professor ? A. It does not enable me 

 to retain every answer in a long examination. 



Q. Is it true, as the learned counsel for the prosecution has just 

 stated, that the lactometer is graduated to take effect only at the 

 specific gravity of 1.029 ? A. I do not understand the learned 

 counsel for the prosecution to have stated what I understand 

 your question might imply ; will you allow me to explain ? I find 

 this lactometer to have a number of marks upon it ; one of these 

 has the figure 100, and that I understand to represent the gravity 

 of 1.029 ; then there are other marks adjusted to a scale which if 

 continued would give us a zero mark corresponding to the gravity 

 1.000, or that of distilled water at 60 ; between these extremes 

 the scale is divided into theoretical hundredth parts ; consequently 

 if we assume that when plunged in it, we shall have a standard of 

 milk, milk at the gravity of 1.029 the instrument would indicate 

 100 or float at the 100 mark ; this would show us that this was 

 100 per cent, of normal milk, in other words nothing but the 

 assumed normal milk ; if to this any percentage of water were 

 added the instrument would sink deeper and the level would come 

 to another mark on the scale, say 80, which would then indicate 

 that there was only 80 per cent, of this normal milk and that the 

 other 20 per cent, was made up by water ; these same degrees are 

 continued below the 100 mark, and in this instrument reach 



