The same portion of the middle class, after they had assisted in putting down the working men's insurrection of June, 1848, had been at once unceremoniously sacrificed to their creditors by the then Constituent Assembly.

Please remove spaces between words.
Thesameportionofthemiddleclass,aftertheyhadassistedinputtingdowntheworkingmen'sinsurrectionofJune,1848,hadbeenatonceunceremoniouslysacrificedtotheircreditorsbythethenConstituentAssembly.