724 STUDIES IN GENERAL PHYSIOLOGY 
experiments, and found that in a mixture of 100 cc. ™ Ca 
(NO,), +20 c.c. 24 m KCl a still larger number of eggs 
formed embryos than in the preceding experiments. On the 
other hand, it could be shown that the addition of small 
amounts of KCl was without effect. 
TABLE XIV 
Foreataee at 
Solution Eges Yielding 
Embryos 
as natentoyea 100 c.c. # Ca(NO,). 0 
Dies teaeettp 100 i ae +heec. ¥% KC 0 
ee cae 100“ © 44 oe 0 
Geese 100 *§ © 49 «4 « 0 
eee 100“ & 44 « 4 0 
Gscaomenan! 10 “ «© 4g « « 2 
TP rescs sdeuetdeet 100 t ot +2 c.c. 24 m KCI 12 
The size of the antitoxic dose of KCl in Ca(NO,), poi- 
soning is, in fact, extraordinarily larger than the antitoxic 
dose of Ca(NO,), in the case of KCl poisoning. Similar 
relations exist for the antitoxic effect of NH,Cl upon CaCl, 
poisoning. 
TABLE XV 
Percentage of 
Solution Begs Yielding 
mbryos 
Li vsancis eet 100 c.c. # Ca(NO,). 0 
Di abril 100 ne a +1 cc. 24m NH,Cl 9 
Dsspstonasaet 10 # Oe QR : 
Bowed eee 100 se as + 4 “ “ 16 
De Siteiweees 100 He “6 + 8 “ “ 21 
Gis cscituits ones 100 ee ee +16 “ “ 16 
The antitoxic effects of NH,Cl are not as great as those 
of KCl. Similar experiments with NaCl and LiCl as anti- 
toxic substances were without positive result. 
Similar experiments were then performed with MgCl. 
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