1908] PIERCE—RESPIRATION C. ER 199 
Date Time Flskr | 2 | 3 | 4 |aeSge| © | (00m |Max.| Min. 
Apr. 29..... 6:00 P.M. | 2297 C. | 21°96} 22°91} 22°4) 22°%0| 2293] 19°5 
Wy 30... OsL5 AM. (| 23.7 22.3] 23.8] 23.8) 18.2) 23.0 
Lavih PA | 2A 9 23.1| 24.8] 24.5| 18.3] 24.0] 20.5 
5:30 P.M a7 .0 25.7| 27.3| 27.4] 19.6] 26.5] 21.0 
LS 3 eater 8:15 A.M. | 31.1 31-7| 32-4] 32-4] 17-4] 31.3] 14-5 
12:30 P.M. | 32.3 33-5| 33-9] 33-8] 17-7| 33-0] 18.2 a ie 
eve: 3-4 35-1| 35-3} 35-0] 18.2) 34.5) 19-0|27-5/14-4 
Moyea. 8:45 A. 20.9 38.4] 39.0] 37-5] 17-6] 37-5 
12:30 P.M. | 30.2 39-5] 40.2] 38.5] 18.0) 39.0 
3:50 P.M 36.8 40.5] 41.4} 38.8} 18.4] 40.0) 18 3\26.2|16.1 
Experiment stopped at 3:50 P.m., May 2. 
| Flask 1 2 2 4 | 5 | 6 | 
No. peas decayedf. 3 2 | 4 2 ° 3 | Radicles 2.5-3°™ long. 
OC eee eli | ae Ss a 
Some of the sprouted peas planted in soil all grew normally. 
2 Tha + 
ked dead were killed as in e: : 
+ These decayed peas were without exception weevily, and because of the boreholes of the weevils 
could not be sterilized. Since the weevils close the outer ends of the holes, it is impossible to detect all 
the weevily peas when working with iderable quantitie: 
MacFartanp for his help in this particular respect as well as in 
others. Owing to the position of the thermometers, making uniform 
sighting impossible, I do not record the attempt to read to fractions 
of tenths of degrees. 
To see whether the heat liberated by a small amount of yeast ina 
small volume of a fermentable solution could be measured by the 
method described in the foregoing pages, I carried on some experi- 
ments, only one of which I need to report now. The yeast used was 
“Golden Gate compressed yeast,” which is, I believe, only one of 
the many local names for what passes in the east under the name 
of Fleischman’s compressed yeast. Four flasks were sterilized by 
being washed thoroughly with a saturated aqueous solution of Cor 
Tosive sublimate. They were subsequently rinsed twice with sterilized 
water and plugged with cotton. Into each of these flasks 250°° of 
tO per cent. solution of cane sugar were poured as quickly as possible. 
The solution had previously been sterilized in four cotton-plugged 
asks, from each of which it was poured into a Dewar flask. Since 
the yeast to be added is by no means a pure culture, I thought this 
Sufficient care to exercise with the solution. To three of these Dewar 
