Beta (1864 barque)

	Beta, 1880.
History
Name	Sir John Lawrence (1864–79); Tonnes Christian (1879–80); Beta (1880–93);
Namesake	Sir John Lawrence
Owner	Rose & Co. (1864–79); R. Birkeland (1879–81); Aadals Brug (1881–83); Winge & Co. (1883–93);
Port of registry	Aberdeen, United Kingdom (1864–79); Christiania, Norway (1879–93);
Builder	John Duthie, Sons & Co.
Launched	5 April 1864
Maiden voyage	1 July 1864
In service	May 1864
Identification	United Kingdom Official Number 48853 (1864–79); Code Letters TVLR ( –1879); ; Code Letters HFNP (1879–93); ;
Fate	Wrecked 19 May 1893
General characteristics
Class & type	Clipper (1864–79); Merchantman (1879–93);
Tonnage	879 or 883 GRT, 845 NRT
Length	186 feet 0 inches (56.69 m)
Beam	32 feet 1 inch (9.78 m)
Depth	20 feet 4 inches (6.20 m)
Propulsion	Sails
Sail plan	Full-rigged ship (1864–78); Barque (1878–93);
Complement	29 (1865)

Beta was a barque built in 1864 by John Duthie, Sons & Co., Aberdeen, United Kingdom as the full-rigged ship Sir John Lawrence. She was sold to Norway in 1878, re-rigged as a barque, and renamed Tonnes Kristian. She was renamed Beta in 1880, serving until she was wrecked in the Magdalen Islands in 1893.