Block · one region of the page, as the scanner read it. It may hold a whole story, part of one, several, or an advertisement; stitching blocks into articles is the next step. Text is supplied OCR.
Page 3 · column 2 of 3 · from the scan, no model involved

THE DRUGGIST IS REQUIRED TO KNOW
METROLOGY
Metrology is the science of measuring dry and liquid substances. Some potent drugs which are healthful in one quantity are dangerous in another. The difference between these quantities—a difference often of life and death—must be measured on apparatus so sensitive that it is glass-enclosed to keep it freeof dust which might affect the validity of the measurement. The measurement must be read by a skilled metrologist —your pharmacist.
Your Druggist Is Trained To Serve Your Health Needs
86.8%