This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1919 Excerpt: ...experiments reported in this paper have been controlled by simultaneous determinations of the oxygen consumption by normal, starving worms, and the continuous observations on these controls give a picture of the course of the oxidations during prolonged starvation. These observations are given in tables 4, 5, 6 and 7. ...
Read More
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1919 Excerpt: ...experiments reported in this paper have been controlled by simultaneous determinations of the oxygen consumption by normal, starving worms, and the continuous observations on these controls give a picture of the course of the oxidations during prolonged starvation. These observations are given in tables 4, 5, 6 and 7. Since the effects of previous feeding were to be avoided in the experiments for which these worms were controls, the worms were starved for several days before beginning observations. In the experiment recorded in table 4, Planaria maculata that had been starving for sevefal weeks were observed for 34 days during which Showing that Planaria agilis after 63 days of starvation have the same rate of oxygen consumption as worms starved for only 7 days. The former worms underwent natural fission 62 to 59 days previous to the first test, because of their large size and sudden removal of food. The anterior pieces from this fission, measuring 10 to 13 mm. in length 69 days before the first test were reduced in length to 7 or 8 mm. at the time of the first test; 10 worms in each bottle. The worms of short starvation period measured 14 to 19 mm. in length; 5 worms in each bottle. The lengths of the three successive tests were, in order, 49, 49 and 48M hours. Temperature 20" C. plus or minus 0.15 C., except a temporary fall to 16" C., during the third test, which accounts for the low values in column 10. One cubic centimeter thiosulphate equals 0.1710 cc. oxygen at N. T. P. Worms weighed before the first test and after the third, and the average weight during each period determined by interpolation. time 12 tests of the oxygen consumption were made, each of about 46 hours' duration. Column 6 shows a steady decline in the average amount of oxyge...
Read Less
Add this copy of Quantitative Studies on the Rate of Respiratory to cart. $35.45, new condition, Sold by Media Smart rated 4.0 out of 5 stars, ships from Hawthorne, CA, UNITED STATES, published 2019 by Wentworth Press.
