3()0 



BABCOCK. 



Time 



in 

 Min. 





 1 

 2 



3 

 4 

 5 

 6 

 7 

 8 

 9 

 10 

 11 

 12 

 13 

 14 

 15 

 16 

 17 

 18 

 19 

 20 

 21 

 22 

 23 

 24 

 25 

 26 

 27 

 28 

 29 

 30 

 31 

 32 

 33 

 34 

 35 

 36 

 37 

 38 

 39 

 40 

 41 

 42 

 43 

 44 

 45 

 46 

 47 

 48 

 49 

 50 

 51 

 52 

 53 

 54 

 55 



Ohms 



Obs. 



Therm. 



8.94585 

 4664 

 4765 

 4841 

 4928 

 5021 

 5104 

 5200 

 5285 

 5377 

 5463 

 6072 

 6566 

 7059 

 7512 

 7977 

 8440 

 8900 

 9335 

 9776 



9.00201 

 0626 

 1066 

 1503 

 1925 

 2351 

 2772 

 3200 

 3613 

 4034 

 4465 

 4338 

 4317 

 4337 

 4356 

 4376 

 4407 

 4437 

 4470 

 4506 

 4541 

 4577 

 4620 

 4657 

 4706 

 4745 

 4790 

 4830 

 4877 

 4910 

 4968 



5046 

 5082 

 5123 

 5168 



Ammonia Measurement 12 at 122°. 5 C. 

 18 May, 1916. 



Std. Ohm 

 Std. Cell 

 Oil Bath 



Temp. Start: 

 Temp. Start: 

 Temp. Start: 



26°.l C. End: 25°.2 C. 

 22°.0 C. End: 21°.8 C. 

 13.23410 End: 13.22465 

 13.23402 Ohms Std. Therm. 



Switch On. 



Switch Off. 



P. D. across 



Standard Ohm 



in Volts. 



0.41029 

 0.41025 

 0.41023 

 0.41020 

 0.41012 

 0.40983 

 0.40983 

 0.40983 

 0.40985 

 0.40984 

 0.40983 

 0.40987 

 0.40988 

 0.40990 

 0.40993 

 0.40992 



P. D. across 



Small Coil of 



Volt Box in Volts. 



10759 



10759 

 10749 

 10742 

 10726 

 10645 

 10645 

 10659 

 10657 

 10654 

 10655 

 10656 

 10669 

 10680 

 10680 



Ro: 8.94573 

 Ri: 8.95464 

 R.: 9.04112 

 Rs: 9.05167 



10 Min. 

 20 Min. 

 25 Min. 



Heating Period 



(t2 — tl) 



in Seconds 



1200.30 



