1913] GODDARD—SOIL FUNGI 250 
The studies of distribution according to depth were made on all 
three of the plats previously indicated. Samples were taken in 
different positions horizontally on each plat. Three depths were 
tried at first: 2cm.,8cm.,and 14cm. Later, samples were taken 
at only two depths: 4cm. and 12cm. Four sets of samples were 
taken on dates and at depths indicated in table I. A series indi- 
cates a set consisting of a sample at each level given. 


TABLE I 
Date Plat No. of samples | Depths in cm. 
Rte See en I 2 series a, 3, 14 
SUR 58 Sie ee I 2 2, 8, 14 
a a ee II 2 2, 8, 14 
WE oe ee ee ee Til I 2,1 
RRL ky eas I I 4, 12 
a eet einer es aa cad ooh ty ten Gn II I 4, 12 
so Ae Di a POE cere Ob 08 EAE oe erat Til I 4. 12 





After mycelia had become 3-8 cm. wide, countings were made 
of each plate, as accurately as possible without special device, to 
determine the number of mycelia for each plate. The counting 
for each sample included all the mycelia on the three plates which 
were inoculated from that sample. A summary of the results 
obtained by these countings is given in table Il. The averages 
given were obtained by adding together all the countings made at 
a particular depth and then dividing by the number of samples at 
that depth. 








TABLE II 
a SAMPLE AT EACH DEPTH 
PLat 
2 cm. 4cm. 8 cm. 12 cm, 14 cm. 
EE ENE ct ae 68.6 21.5 m8 29.0 54-3 
Rss og ceo en 101.5 53.5 59-5 ae:5 50.0 
PIR a ee see, 17.8 by ey, Peairarae ee 28.0 20.0 
Average for 3 plats........ 62.6 30.2 55-9 30.8 41.4 




While the accuracy of the absolute values of these countings, 
from which these averages are computed, might well be questioned, 
nevertheless, it is believed that the relative values of the averages 
