▁He ▁consult ed ▁with ▁profess ors ▁Stephen ▁M . ▁Bab cock ▁( 1 8 4 3 - 1 9 3 1 ) ▁and ▁Edward ▁H . ▁F arr ington ▁( 1 8 6 0 - 1 9 3 4 ) ▁at ▁the ▁University ▁of ▁Wisconsin , ▁who ▁had ▁been ▁commission ed ▁to ▁develop ▁a ▁practical ▁standard ▁test ▁for ▁meas uring ▁the ▁fat ▁content ▁of ▁milk . ▁Bab cock ▁had ▁designed ▁a ▁special ▁flask , ▁now ▁known ▁as ▁a ▁Bab cock ▁bott le , ▁for ▁that ▁purpose . ▁ ▁In ▁the ▁w ake ▁of ▁that ▁visit , ▁Louis ▁founded ▁the ▁company ▁Louis ▁F . ▁N af is , ▁Inc . ▁in ▁Chicago ▁to ▁make ▁scientific ▁glass ware , ▁and ▁was ▁the ▁first ▁company ▁to ▁market ▁Bab cock ' s ▁standard ▁flask . ▁In ▁ 1 9 3 2 ▁he ▁sold ▁the ▁company ▁to ▁Kim ble ▁G lass , ▁which ▁was ▁later ▁taken ▁over ▁by ▁O w ens - Ill inois ▁G lass ▁and ▁is ▁now ▁part ▁of ▁D W K ▁Life ▁Sciences . ▁ ▁By ▁ 1 9 3 4 - 1 9 3 7 , ▁his ▁former ▁company ▁still ▁retained ▁its ▁identity ▁as ▁a ▁division ▁of ▁Kim ble ▁( with ▁address ▁ 2 3 ▁North ▁Des pla ines ▁St .), ▁and ▁market ed ▁re ag ents ▁for ▁milk ▁testing , ▁as ▁well ▁as ▁glass ware . ▁By ▁ 1 9 4 3 , ▁the ▁Bab cock ▁bott les ▁from ▁Kim ble ▁still ▁had ▁" K / N af is " ▁et ched ▁on