[Instruments, books and other objects memorable to (almost) forgotten opinions, therapies, buildings, et cetera. The role of Luyendijk].
D000818:Animals; D002417:Cattle; D003612:Dairying / Q000266:history* / Q000706:statistics & numerical data; D049673:History, 20th Century; D007774:Lactation; D008892:Milk / Q000378:metabolism; D009426:Netherlands; D014730:Veterinary Medicine / Q000266:history* / Q000295:instrumentation / Q000379:methods