X1V PROCEEDINGS OF THE 
FEBRUARY 11, 1909. 
T. Bennet Cuark, Esq., C.A., President, in the Chair. 
The following communications were read :— 
1. NOTES ON AERIAL RooTS OF ACANTHORHIZA ACULEATA, 
WENDL. By Miss BerTHA CHANDLER, M.A., B.Sc. (See 
p- 20.) 
2. NOTE ON SEPTA IN Root VESSELS IN TILLANDSIA, 
Puya, ETc. By Rev. JAMES WATERSTON, B.D., B.Sc. (See 
p. 25.) 
3. MoRPHOLOGICAL CHANGES INDUCED IN ROOTS OF 
BROMELIACEZ BY ATTACK OF HETERODERA SP. By Rev. 
JAMES WaTERSTON, B.D., B.Sc. (See p. 26.) 
Dr. R. Stewart MacDouGaLi showed Zeuzera cescult 
on Jasmine and Hepialus hwmuli on Peonia magnifica, 
both from England. 
Mr. ALEXANDER CowAn showed Polystichum angulare, 
Presl, a new record for Midlothian, and varieties of 
Lastrea montana, T. Moore, found in Midlothian. 
Mr. W. BaLrour GouRLAY showed a copy of “The 
Agriculturist’s Manual” which, on 29th June 1836, had been 
presented by Peter Lawson, the author, to the late Sir 
John Murray Naesmyth of Posso. The book contained 
marginal notes by Sir John referring to trees on the 
Dawyck estate. Against Pinus austriaca we read :— 
“This tree was first planted at Dalwich previous to any 
others in the kingdom by me.—J. M. N.” Again we find 
opposite Pinus ponderosa :—“ I have seven specimens of 
those first introduced into Scotland... .” Among trees 
tried, but without success, are:—Pinus pinea, P. hale- 
pensis, P. Lambertiana, Picea Morinda, and Araucaria 
Cunningham. 
Mr. RUTHERFORD- HILL exhibited an abnormal growth in 
a common carrot. The tap root had bifurcated just below 
the crown, and the two sections of the root had formed a 
beautiful and perfectly symmetrical spiral about eight 
