between the Equivalent Numbers of Elementary Bodies. 353 
bericht. In the second case, the number found for zirconium 
varies but ;,; from that generally received. In the third, the 
number found for boron is intermediate between the number 
adopted in the Jahresbericht 10-90 and that found by Deville, 11. 
ncies such as these are trifling in the extreme, and have 
not the slightest real significance. ; 
osphorus stands to nitrogen in nearly the same ratio as 
strontium to caleium :— 
Phosphorus 31 SO imate od 14:16, Nitrogen = 14. 
Strontium 43°77 , 
_ Tin stands to titanium in nearly the same ratio as iron to mag: 
Tin 59 X = 25°28, Titanium = 25. 
Magnesium 12 
_ Tron 28 
‘Tin stands to zinc in almost exactly the same ratio as gold to 
filer, or as boron to carbon :— 
; Silver 108 : 
Tin 59 _—. — $2°35, Zine = 32°60. 
eee Gold 197 
. Carbon 6 : 
Tin 59 —32°48, Zinc — 32°60. 
* Boron 10°9 5‘ 
These and many other analogies of the same character are 
brought together in the following table, by which the ratios of 
‘omparison between each pair are shown, up to the second place 
: decimals, beyond which it is pseudo-accuracy to go, in view 
the data. , 
| Ratio of tellurium to selenium, or ba = af 
| Ratio of antimony to arsenic, or © ae == 200 
Ratio of zirconium to magnesium, — tm, MST 
Ratio of chlorine to fluorine, se — 1:87 
Ratio of boron to carbon, pals = = 
Ratio of gold to silver. st = 1°82 
Ratio of strontium to calcium, cal = “4 
Ratio of phosphorus to nitrogen, ae = 2°21 
SECOND SERIES, Vor. XXIX, No. 87.—MAY, 1860. 
45 
a 
a, 
