Communications
from the physical laboratory of the univer-
sity of Leiden by H. Xamerlin^h Onnes.
No./^-/^/^/^/	8 :o Leiden ^/^-^
Supplement.
No. ^-77, 7/;^-//	8:o Leiden^/^-^j
(Contents.)
No./^77%cSupplements No.^y-^8:o Leiden 7^2^

___Communications ______
from the physical laboratory of the univer-
sity of Leiden by H. Kamerlingh Onnes.
No. /3-/50//47-/4	8 :o Leiden /22532
Supplement.
No.40-4%,46/48-66	8:0 Leiden 9/5 22/
(Contents.)
No. /5%-/80 Supplements No:44-38°0 Leiden/4%