Rush x Kentish Cob (Du Chilly 430 63 14 11 2 Rush x Cosford 447 52 12 11 2 Rush x Bollwiller 165 18 11 6 3 Rush x Italian Red 118 17 16 2 1 Rush x Red Lambert 36 10 28 6 16 Rush x Daviana 13 2 15 2 15 Rush x Purple Aveline 12 3 25 1 8 Rush x White Lambert 11 0 0 0 0 Rush x Barcelona 119 20 16 3 2 Rush x White Aveline 54 10 18 3 5 Rush x Imperial deTrebizond 24 5 21 1 4 Rush x Nottingham 23 7 30 2 8 Rush x Brixnut 8 2 25 0 0 Rush x Littlepage 12 0 0 0 0 Rush x Winkler 6 0 0 0 0 Barcelona x Kentish Cob (Du- Chilly) 42 21 50 3 7 Barcelona x Cosford 57 27 48 1 2 Barcelona x Bollwiller 11 2 18 0 0 Barcelona x Italian Red 66 9 13 0 0 Barcelona x Red Lambert 41 12 29 0 0 Barcelona x Daviana 21 5 24 0 0 Barcelona x Purple Aveline 25 8 32 0 0 Barcelona x White Lambert 43 1 2 0 0 Barcelona x Medium Long 45 16 35 0 0 Barcelona x Early Globe 78 0 0 0 0 Barcelona x Halle 12 6 50 0 0 Barcelona x Red Aveline 9 1 11 0 0 Kentish Cob (Du Chilly) x Cosford 35 22 63 0 0 Total 1970 340 17 52 2.6 TABLE 2. Yields and winterkilling of filbert catkins, Orchard 16, 1935 1937, 1938 and 1939. Yields are 4 year total. Catkin injury is 5 year mean No. of Mean Highest Mean Lowest Selec- Yield Yield Percent- Percent- tions per Se- per Se- age Cat- age of lection lection kins Catkins in in Winter- Winter- Cross Ounces Ounces killed killed per Se- lection