TY  - JOUR
T1  - A Description of a Vertical Floating Collimator; and an Account of Its Application to Astronomical Observations with a Circle and with a Zenith Telescope
JF  - Philosophical Transactions of the Royal Society of London (1776-1886)
VL  - 118
SP  - 257
EP  - 289
PY  - 1828/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1828.0014
M3  - doi:10.1098/rstl.1828.0014
AU  - Kater, H.
ER  -