ERRATA Expression of the Cloned Escherichia coli 09 rfb Gene in Various Mutant Strains of Salmonella typhimurium TSUYOSHI SUGIYAMA, NOBUO KIDO, TAKAYUKI KOMATSU, MICHIO OHTA, AND NOBUO KATO Department of Bacteriology, Nagoya University School of Medicine, Showa-ku, Nagoya, Aichi 466, Japan Volume 173,

no.

1,

p.

56, Table 1, strain his-S15, column 3, line 4: "rflb rfaL" should read

"rfb."

Structure of the Gas Vesicle Plasmid in Halobacterium halobium: Inversion Isomers, Inverted Repeats, and Insertion Sequences WAI-LAP NG, SRINIVAS KOTHAKOTA, AND SHILADITYA DAsSARMA Department of Microbiology, University of Massachusetts, Amherst, Massachusetts 01003

Volume 173, no. 6, p. 1963: Fig. 6 should

appear as

shown below.

A .Q ...

--all. !AACTAKAGACGAATG

...

ISH2

IIIIIIIIIIIIIIIIIIII CCTCJTATCGCAGGGI

pMGHD 1

AAGACGAATG GTTAACGCCAACAT

CT

..

pEGHE' 1

!AACThAAWACG

...

IIHIIIIIIIIIIIIIIII -I NGHBb3{12

.....

CTCVCTJAACC . .CfAAC .

NGHBb3N46/7

I ISH3

GCTAATCCCAAT1WAL2AGCGT.

,pGHJ

.Gm~~GT~~' GA~C~ATCAA

pMGHS1

Tca2CG& GTAG=~GhA~CGT.

111111111111111 . A 111111111 AGA r

MAGC 11111111111

..

ofiAT cr.W

pNGHF1

r-%T

ISH51L

1ltIll 111111111111 ISHSIR

11II~~~~~~~~~~~~~~~~~ 1111111111111111111 .

C~AA1~~CGACACGG

.

.

GGA*TTGfOC..

.

.lll . ... ..

TAAG&GG

ISH6

.~~~~~..

.

.__C

_

ISH8

AAGTG

TfGfA. pNGHCI

-~~~~~~~I

~~~CGATA~~~~~~~~~ ~~~

1111111111111111j .GTCTCCfAACTAAAGACGGAT( 2 II

GTlC

G pNGHDl

111111111111111 ACACGCCCCTGATCA pliGHEI

11 rTACGATTAGGc

.111111111111111...

FIG.

pNGHD'1

1111111111111111 ISH26

FIG. 6. 3933