VI PREFACE. 



the agricultural student. It is anticipated by the translators 

 that the work will be found of value by medical men gener- 

 ally, and more especially by officers of public health. They 

 also hope that it may afford some assistance to agricultural 

 and analytical chemists, as well as to other sanitary authorities 

 charged with the administration of the Adulteration of Foods 

 and Drugs Act. 



The monetary value of the interest involved in dairy 

 produce is pointed out at greater length in the Introduction. 

 It may suffice here merely to refer to the fact, that an annual 

 income of over 32,000,000 is estimated to be derived in 

 this country from the sale of dairy produce, or one-sixth of 

 the whole income of British agriculture. But enormous as 

 this sum is, it is not all that is paid by the consumer for 

 dairy produce, since we import it from other countries to the 

 extent of over 20,000,000 per annum. Much of the produce 

 represented by the 20,000,000 finds a ready market in 

 Britain chiefly because of its high and uniform quality. 

 There is no reason, however, why dairy produce of an equally 

 uniform and of even a higher quality should not be manu- 

 factured at home, and thus the best position be retained in 

 our own markets. In achieving this object everything which 

 tends to bring about a better and more scientific knowledge 

 of dairying may be said to help, and it is the confident 

 expectation of the translators that the present volume will 

 not be found altogether ineffective in promoting this purpose. 



