1914] HOYT—COLLOIDAL METALS 203 
TABLE V—Continued 
MeEpiIum EMPLOYED, NON-TOXI ER OF TESTS IN 
s DISTILLED WATER sAaaaibatr WHICH SHEATHS WERE 
Z 
a ALGA EMPLOYED pore nsoids and —— and Notes? 
: mate concentra mate concentra-| Formed | Not formed 
Oo n, pp i 
8) | S.decimina |............ NaOH; oor 9) 2-2 2 
9 | S.longata Pinte po Se eh ere I E, for 9 days 
96.0 D, after 22 days 
1o | Do. Platinum, dap water, [0.5.8 I G 
: 48.0 50.0 
11a | De, do. 2 Pammaians Seca Sh I E 
o.o1f 
11) | S. decimina do. do. y Hertaey Giger e E; cenig sheaths 
within 17 hours, 
colored ge 
12a | S. longata Platinum, NaOH, I I G; fs slight 
86 4 0.029 shea ths in one 
ure 
12b | S. decimina do. do. oo ea E; heavy sheaths 
within 17 hours; 
colored by Pt. 
130 | S. longata do. WeOH, 2 E 
P o.o1f 
136 | S. decimina do. do. Sap aoe es a E heavy sheaths 
within 17 hours, 
colored by Pt. 
peep e eeeee | Silver, oo, |..... |... 2c... 19 Mostly D, in some 
and. vari- cases G 
a lower 
concentra 
ions 
15a | Do mrver,@.940) NAOH, |. 53.25). I D 
0.02 ‘ 
15b | Do. ilver, 0.09 = ges ula tos I Mostly D 
og Do. Silver, 0.045 oes Rages I Gp 
10 | Do ON a a 5 E 
96.0; sil- 
ver, vari- 
ous con- 
tra- 
tions be- 
OW 90.0 
17 | Do. Silver, vari-| Saltstoform|......... 5 E 
ous con- Crone’s 
centra- solution, 
tions be- 0.5 
low 90.0 
All Sod firenra I 
eta slats 
Be Gel 
on ae 
ens pond trom 
aaa 
is The general <j ig of the filaments is here denoted by the s: 
She, Come 
Og 
Pee 
z. sai etc., as in previous tables. 
‘a used was from the stock culture therwier 
sa employed in the Prom the of the colloidal bo Pia, 
bya 
ar fnven. ge 's solution thickened with 1 per cent 
1 at another time. 
J 
ez. ¢ 
Weal re | 
