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LITERATURE CITED 
{!) Jack, Rupert W, 
1917. Parthenogenesis amongst the workers of the Cape honey-bee x 
Mr, G. W. Onions' experiments, Roy. Ent, Soc, London, 
Trans. 1916 » 396-403, illus. 
{2) Laidlaw, H. H,, Jr. 
1944. Artificial insemination of the queen bee ( ^pis mellifera L.)i 
Morphological basis and results. Jour, Morph. 74 i 429-4G5 
illus. 
(_3) Mackensen, Otto 
1943. The occurrence of partheno genetic females in some strains 
of honeybees. Jour. Econ, Ent. 36 t 465-467. 
(1) 
1947. Effect of carbon dioxide on initial oviposition of artifi- 
cially inseminated and virgin queen bees. Jour, Econ, Ent, 
40 J 344-349. 
(5_) Nolan, Wl. J. 
1932. breeding the honeybee under controlled conditions. U. S. 
Dept, ^^r, lech, :3ul. 326, 49 pp., illus. 
(6) 
1937, Improved apparatus for inseminating queen bees by the 
V«atson method. Jour, Econ. Ent. 30: 700-705, illus* 
(2) Roberts, .V. C. 
1946, The performance of *;he queen bee, iimer. Bee Jour. 86: 
185-186, 211, illus. 
(8_) iipeicher, Kathryn Go, and 3. R. Speicher. 
1938. Diploids from unfertilized eggs in Habrobracon, iiiol. Bui. 
74: 247-252, illus, 
(9_) VJatson, Lloyd R, 
1927. Controlled mating of queenbees. 50 pp., illus, 
Hamilton, 111, 
(10) 
1929. i>iew contributions to the technique of instrumental insemina- 
tion of queen bees. Jour, icon, int, 22: 944-954, illus. 
