. La chronique des jardiniers et la Gazette agricole . 6.12 [ pierres de 5G; 10 £ 2 4.87 56 6.50 1 enfin frein 12 48 3.67 52 5.50 1 avec un dégonflage de 13 56 4.87 60 7.00 8.500. 14 52 3.37 56 4.75 1 15 : 48 3.93 52 9.00 1 17 • 60 4.67 64 8.50 20 60 5.00 64 9.00 23 i 60 5.00 64 , 6.12 54.3 4.44 1 59 7.11 moyenne. B. QuEBCnS SESSILIFLOBA. rr! 1 rupture de la liste ^s poids. Poids du déflec. Déflec- tion, pierres. Pouces. Pierres, pouces. 2 44 3.87 48 8,31 4 44 3.75 48 6.75 5 48 3.87 52 9.00 6 48 4.31 52 6.00 ? i) 44 4.50 48 9,50 11 44 4.00 48 7.00 16 .40 3.31 44 3.31 22 56 4.73 60 7.50 24 48

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. The Gardeners' Chronicle and Agricultural Gazette . 6.12 [ 5G stones; 10 £2 4.87 56 6.50 1 finally brake 12 48 3.67 52 5.50 1 with a deflec- 13 56 4.87 60 7.00 tion of 8.500. 14 52 3.37 56 4.75 1 15 : 48 3.93 52 9.00 1 17 • 60 4.67 64 8.50 20 60 5.00 64 9.00 23 i 60 5.00 64 , 6.12 54.3 4.44 1 59 7.11 Average. B. QuEBCnS SESSILIFLOBA. rr! 1 Eesisting Breaking ^s Weight. Deflec- Weight. Deflec- a tion. tion, Stones. Inches. Stones, Inches. 2 44 3.87 48 8, 31 4 44 3.75 48 6.75 5 48 3.87 52 9.00 6 48 4.31 52 6.00 ? i) 44 4.50 48 9, 50 11 44 4.00 48 7.00 16 .40 3.31 44 3.31 22 56 4.73 60 7.50 24 48 4.00 62 6.00 25 44 4.25 48 5.50 26 52 4.50 56 8.50 48 4.09 50.5 7.12 Observations. Splintered at6.000 deflection, ft minute beforeit bent to 9.500and broke. Snapped suddenly Average. while the average breaking weightof Q. pedunculatawas 59 stones, that of Q. sessiliflora was only 50i.The tables themselves place Q. sessiliflora in a yetmore unfavourable liglit, as appears from thefollowing statement:— Q, BESSILIFLOBA, out of 11 trials, carried. Mr, Henderson speaks of three experiments withthese Oaks when the scantlings were placed withthe bark uppermost. In these cases the tables givethe results as follows :—A.* QuERcus pedunculata. Bark side uppermost. Resisting Breaking a 1 Weight. DeSec-tiou. Weight, Deflec-tion, 21 Stones.48 Inches.4.00 Stones, 52 Inches, 6.00 Broke suddenlyin IJ minute. B. QuERCus SESSILIFLORA. Bark side uppermost. a Resisting Breaking Observations, H m Weight. Deflec-tion. Vfeight. Deflec-tion, 1319 4848 3.733.50 52 52 7, 004, 37 Bent veryrapidly, then broke sud-denly. 48 3.61 52 5, 68 Average. These results do not entirely correspond with Mr.He.ndeusgns conclusions, probably owing to somedifference in our mode of looking at the tables fromwhich they are drawn. They however show that So that it appears to be by no means immaterialin what manner the bending is conducted ; forwhile Q. pedunculata with the bark upwards brokewith 48 stones, it bore more than

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