An Elementary Course in Practical Zoölogy

Paperback | October 12, 2012

byBuel Preston Colton

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1896 edition. Excerpt: ...head at one end of the board. Push the point of a tack into the mouth at one side, and drive it through the upper jaw, leaving the lower jaw free. Repeat with the other side. Stretch the snake out straight, and tack through the tail, just back of the vent. With the forceps pinch up a fold of the skin of the throat, and cut through it with the scissors; continue the cut back along the middle line of the belly, being very careful not to cut anything within. As the cut proceeds, stretch the skin out at the sides, and tack it down every two or three inches. Cut away the.thin membrane which extends across from the ribs on each side, avoiding blood-vessels. 1. With forceps seize the lower jaw and pull the mouth open. Note how dilatable the mouth is, and how loosely the lower jav is hinged to the upper; note, also, that the right and left halves of the jaws do not unite in front. Examine closely the teeth, their shape and arrangement. 2. Seize the tongue, and draw it forward from its sheath in the floor of the mouth. Observe its black, forked tip; tack it down. 3. Above the tongue find a small opening, the entrance to the windpipe. It is called the glottis. 4. Insert a blowpipe (glass tube) into the throat through the mouth; pinch the walls of the gullet closely around the blowpipe, and inflate the wide gullet and stomach. What does the snake eat, and how does he eat? 5. For inflating the lung, a tube with a small point is better; draw out a small glass tube, and connect with a rubber tube; insert the point in the glottis, and inflate. This locates the pink lung, with its posterior, thin walled extension, or air-sac. 6. Trace, from the glottis to the lung, the ringed windpipe, or trachea. Only one lung is developed; look for the rudiment of the...

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1896 edition. Excerpt: ...head at one end of the board. Push the point of a tack into the mouth at one side, and drive it through the upp...

Format:PaperbackDimensions:54 pages, 9.69 × 7.44 × 0.11 inPublished:October 12, 2012Publisher:General Books LLCLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:0217810160

ISBN - 13:9780217810166

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