189 



(3) That the determination of fat in condensed milk be studied, special attention 

 beinir given to solutions of less than 20 per cent concentration. 



Adopted. 



That the New Babcock standard, proposed by E. B. Holland and referred to 

 Committee B, be referred to the referee for 1908-9. 



Adopted. 



This contemplated standard" is as follows: 



NKW BABCOCK STANDARD. 



SECTION 1. The unit of graduation for all Babcock glassware shall be the true 

 cubic centimeter lO.'.c.^x, gram of water at 4 C.). 



With bottles, the capacity of each per cent on the scale shall be two-tenths 



cubic centimeter. 



(6) With pipettes and acid measures, the delivery shall be the intent of the gradua- 

 tion and the graduation shall be read with the bottom of the meniscus in line with 

 the mark. 



SKC. '2. The official method for testing Babcock bottles shall be calibration with 

 men -ury i !:;."> 17 I _' rams of clean, dry mercury at 20 C., carefully weighed on analytical 

 balances, to be equal to 5 per cent on the scale), the bottle being previously filled to 

 /..-P. \\iih mercury. 



< >pti'>nal m.-ihod-: The mercury and cork, alcohol and burette, and alcohol 

 and brass plunder methods may be employed for the rapid testing of Babcock bottles, 

 but the accuracy <>f all que>tionable bottles shall be determined by the official method. 

 1. The ..llii ial method for testing pipettes and acid measures shall be calibra- 

 tion by meaMiriiiL: in a bun-He th' quantity of water (at 20 (\) delivered. 



Tin- limit >i error I 'r Babcock bottles, it shall be the smallest gradua- 



tion <>ii tin- -ale, hut in ii<> case -hall it exceed five-tenths (0.5) percent, or for skim 

 milk b-.nl.- .ni- hundredth (0.01) percent. 



(6) Kor full quantity pip.-ti.-. it shall not exceed one-tenth (0.1) cubic centimeter, 

 and I'T fractional pipette- li ve-hundredths (0.05) cubic centimeter. 



(c) For acid i it -hall n<>t exceed two-tenths (0.2) cubic centimeter. 



REPORT OF COMMITTEE ON RESOLUTIONS. 



1.. I.. VAN SLYKE, Chairman. 



(1) Jton/m/, That we express to Professor Snyder our appreciation of the able 

 and rourt i< manner in which he has presided over the deliberations of the con- 

 vention. 



AV.SO/M./. That whereas a national bill to regulate the composition and sale of 

 iiiMM-tiri.l** and fun-ji. i,l,-< has been recently drawn up by a committee composed of 

 members of the ASS.H -iation of Kconomic Entomologists, manufacturers of insecticides, 

 and a-ricultural -h,-mi.-t- int.- r .-te<:l in insecticide and fungicide analysis, which bill 

 will be presented to Coi^ren I'-T approval and passage; the Association of Official 

 A-ricultural < h.-miM- doefl lu-reby express its approval of national legislation on this 

 Mil.je.-t. which lei:i>lati..n it is believed will be of inestimable service in protecting 

 the farmin- community a< well as the legitimate manufacturer and in unifying state 

 und fungicide laws. 



ivpot-t .f tlir c..tniiiittee was approved. 



a For further discussion of this standard, see Twentieth Annual Report of the 

 Mawachusetts Agricultural Experiment Station, January, 1908, p. 113. 



