We're unable to sign you in at this time. Please try again in a few minutes.
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
There may be a problem with your account. Please contact the AMA Service Center to resolve this issue.
Contact the AMA Service Center:
Telephone: 1 (800) 262-2350 or 1 (312) 670-7827  *   Email: subscriptions@jamanetwork.com
Error Message ......
Article |


JAMA. 1931;97(10):720-721. doi:10.1001/jama.1931.02730100044024.
Text Size: A A A
Published online


Sources of Drinking Water  According to the latest statistics, 4,700,000 inhabitants out of a total population of 7,700,000, or 61 per cent, derive their drinking water from a water system. Of these 444 communes, 142 secure their water from dunes, 25 from subterranean water drawn from dunes, and 49 from river water. Some communes, such as Amsterdam and Groningen, utilize partly river water and partly subterranean water. In 1929 there were 149 water systems, 109 of which are exploited by public administrations and 39 by private companies. From a report recently published on this important question by Messieurs Liefrinck and Krul, certain points of general interest have been taken. The public health law of June 21, 1901, placed all questions concerning the hygiene of water, soil and air under the control of inspectors of public hygiene and created at Utrecht a central laboratory of public hygiene charged with annual chemical


Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

First Page Preview

View Large
First page PDF preview




Also Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
Please click the checkbox indicating that you have read the full article in order to submit your answers.
Your answers have been saved for later.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.


Some tools below are only available to our subscribers or users with an online account.

0 Citations

Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

Related Content

Customize your page view by dragging & repositioning the boxes below.