The book may have numerous typos or missing text. It is not illustrated or indexed. However, purchasers can download a free scanned copy of the original rare book from the publisher's website. You can also preview the book there. Purchasers are also entitled to a trial membership in the publisher's book club where they can select from more than a million books for free. Original Publisher: Wiley Publication date: 1913 Subjects: Water; Medical / Microbiology; Medical / Public Health; Science / Life Sciences / Bacteriology; Science / Environmental Science; Science / Life Sciences / Biology / Microbiology; Technology