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oaxaliner, A. S. (1958). Tho leputation of bilch for soil inprovenent.
A 1it ?ratu.re revien. Res. Dev. Pi{, For. Co! m, Iond.. $o. 67.
Gethint, P., Nelrbould, P, & Potterson, J. B, E. (nds.) (1975).
Hill pasture i[Frovomont.
Potassi-wo ln8titute
!td..
P!oc, Cofloqu, 2 Honley- on-Tha&e8 :
Gibbe, H. s. (1964). stobility of hill country under healJ. stocLil1g.
L Son1 stability. N. Z. hst. agric. Soi. Proc. 10, 61-67,
eillard, P. (1969). ?he €lY6ct of stocking rai6 on bota$icalooElposition
and. soiLs iri natural gxas8land i.rl South Africa.
J. atrDl. Ecof, 6, A89-)+97.
erodftell, i,1. W. (1950). Chan8es in polo-spacs of a pastur€ top sail
unaler aninal tr€adi.ng. N. :. Jl. agric. Ros. 2, 663-674.
Grubb, P, & Jeireu-, P. A. (1974), Mov€loent, deity activity ana ilome
range qf Soay sheep. In Island ful.vivofsi the lcofory of
the Soay Sheep ot St. Kj.Lda (J6!roU, P. A., I6.1ne!, C., & BoJd,
J. M., !ds.), 16O-19t+. London: Athl"o4o Press.
Eanoock, J. (195J). Crazing bshavLoux of cattte. ,qnin. Sreedl.
Abstar. 21 , 1-13.
E8.rafey, W. R. C. (1951+).
soils. 3u11. Fo!. Coruln, Lonc1, No. 2J.
MulL snd oor fonlatio,'r in relati.on to forEsb
Har?er, F. c., r'i/'arlow, w. J, & ctarke, 3, L. (1961). ThF forces
applied. to tho fLoor by the foot in wolking. I. $aflcj.ng on
a l-€vo]" surface. Ros. Pap. natn. 3Lag. Stud., No. 12.
ilarper, F. C., llarlow, W. J. & Clarko, B, L. (1967), Th6 foro€s
app]"iod to tbe f'l-oor by the foot in vraLking. II.
'rif&J.tdng
oo a al,ope, II1, lla1l.in6 on stairs. R6s. pap. natn. Xl"dg.
Stud. No. J2.