PHYSICAL PROPERTIES OF WATER, ETC. 



17 



The calculations are as follows, — the Gauge log. will be explained in Section IV. :- 

 the formula is given in Appendix C, and the mantissge only are written : — 



Hence apparent average compressibility of Portobello sea-water per atm. at 3° C. 

 as given by (:) on 21/12/86 is, 



For first ton 



•11793 = log. 131-2 

 ■61595 = log. 413 



•60291 



(PHYS. CHEM. CHALL. EXI\ — PART IV. — 18S8.) 



Antilos. = -00004292 



Ant ilog. =-00004134 



Antilog. = -00004008 



