<prompt> Translate the following text to EnglishKama mfano, aliona mviringo katika gridi ambayo aliita, baada ya malezi ya kijiolojia karibu Bayreuth, Ujerumani, mfululizo wa Luisenberg.  <response>: There he hit on a pattern based on circles in a grid which he called, after a geological formation near Bayreuth, Germany, the Louisenberg series. 