00728cam a22002291 4500 agr36000118 DLC 20260227110954.0 070905s1936 dcu 000 0 eng agr36000118 DLC DLC DLC SB413.D12 G72 Griffiths, David, 1867-1935. Speeding up flowering in the daffodil and the bulbous iris. By David Griffiths. Washington, U.S. Govt. print. off. 1936. 18 p. 5 pl. on 3 l. 23 cm. U. S. Dept. of agriculture. Circular no. 367 Contribution from Bureau of plant industry. Daffodils. Forcing (Plants) Irises (Plants) 9714 9714