TY  - JOUR
T1  - Directions for Using the Common Micrometer, Taken from a Paper in the Late Dr. Bradley's Hand-Writing; Communicated by Nevil Maskelyne, Astronomer Royal, and F. R. S.
JF  - Philosophical Transactions (1683-1775)
VL  - 62
SP  - 46
EP  - 53
PY  - 1772/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1772.0007
M3  - doi:10.1098/rstl.1772.0007
AU  - Bradley, D.
AU  - Maskelyne, N.
ER  -