An image should appear at this position in the text. To use the entire page scan as a placeholder, edit this page and replace "{{missing image}}" with "{{raw image|The Harveian oration, 1873.djvu/34}}". Otherwise, if you are able to provide the image then please do so. For guidance, see Wikisource:Image guidelines and Help:Adding images.

Fig. 3. — Heart of Australian Cassowary (Casuarius australis). prepared similarly to the heart of sheep, figured in Figure 2, and showing at M the moderator band. A line of papillary upgrowths are indicated at the upper end of the upper segment of the muscular auriculo ventricular valve, passing downwards towards the point of origin of the moderator band from the septum. They extend in the specimen over a spa^e of about three-eighths of an inch, and are indicated in the woodcut by dark transverse lines.