TY  - GEN
T1  - Directions for using the new improved Hadley's quadrantwith the new method of adjusting the glasses for the back observation. By his Majesty's Royal Patent. Made by P. and J. Dollond, Opticians To His Majesty, in St. Paul's Church Yard, London.
DA  - 1772?]
CY  - [London,
PB  - s.n.,
PP  - [London,
PY  - 1772?]
N1  - Includes: 'Directions for using the Hadley's sextant to determine the longitude at sea'.
N1  - Leaf B8, pp. 30-31, is blank.
N1  - With a half-title.
N1  - Reproduction of original from British Library.
ID  - 531771
KW  - Quadrants (Astronomical instruments)
TI  - Directions for using the new improved Hadley's quadrantwith the new method of adjusting the glasses for the back observation. By his Majesty's Royal Patent. Made by P. and J. Dollond, Opticians To His Majesty, in St. Paul's Church Yard, London.
LK  - https://univsouthin.idm.oclc.org/login?url=http://find.gale.com/ecco/infomark.do?contentSet=ECCOArticles&docType=ECCOArticles&bookId=0776700300&type=getFullCitation&tabID=T001&prodId=ECCO&docLevel=TEXT_GRAPHICS&version=1.0&source=library&userGroupName=usi
UR  - https://univsouthin.idm.oclc.org/login?url=http://find.gale.com/ecco/infomark.do?contentSet=ECCOArticles&docType=ECCOArticles&bookId=0776700300&type=getFullCitation&tabID=T001&prodId=ECCO&docLevel=TEXT_GRAPHICS&version=1.0&source=library&userGroupName=usi
ER  -