Add spaces: In1891,Stäckel'shabilitationthesis,IntegrationofHamiltonian-Jacobiandifferentialequationsbymeansofseparationofvariables,wasacceptedbytheUniversityofHalle,nearLeipzig,andhetookupalectureshipthere.

Answer: In 1891, Stäckel's habilitation thesis, Integration of Hamiltonian-Jacobian differential equations by means of separation of variables, was accepted by the University of Halle, near Leipzig, and he took up a lectureship there.

Add spaces: Overallstudentrating:4.0/5.0(121reviews)

Answer: Overall student rating: 4.0 /5.0 (121 reviews)

Add spaces: Elegantweddingbouquetofwhite,blackeyedAnemoneswithgreenerybase.

Answer:
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