Abstract: A scaffolding system that is based on metal clamps that can be used with on-site lumber to provide an elevated walkway. The scaffolding does not hang from the wall against which it is positioned, permitting such wall to subside during construction, as when it is filled with concrete.

Abstract: Ethers and/or esters of D-desosamine having the formula ##STR1## whereinn represents 0 or 1; R and R', each independently, represent linear or branched alkyl having 1-30 carbon atoms, alkenyl having 5-21 carbon atoms, cycloalkyl having 4-10 carbon atoms, cycloalkylalkyl having 5-11 carbon atoms or phenyl or arylalkyl optionally substituted; or R can represent hydrogen when n=1 and R' can represent hydrogen when n=0, the number of carbon atoms of R, R' or R+R' being equal to 9 to 33 inclusive; or R represents the aglyconic part of erythralosamine and R' represents linear or branched alkyl having 9-30 carbon atoms or alkenyl having 11-21 carbon atoms; and the .alpha. and .beta. anomers, their mixture and their salts.These compounds are usefully employed as anti-bacteria and anti-fungus agents in pharmaceutical and cosmetic compositions.