concerned about informing Bertini regarding these matters. What worried him about the revelations in Klein’s letter from 1869 was that this new information might have deeper implications for assessing priority claims with regard to the resolution of singularities. If so, this would presumably require that Noether reconsider what he had recently written about this topic for the forthcoming report [@B-N]. That thought left him deeply troubled. Since Noether’s own work on this topic had played a central role, he clearly had a personal interest in clarifying the situation. In particular, he wanted to ensure that what he wrote in no way clashed with Klein’s views on these matters. His concern about a potential conflict of this sort thus prompted him to write a lengthy and somewhat defensive letter to Klein on 12 January.[^10]

> Due to my absence from Erlangen nothing was done with the mailing from the $4^{th}$ regarding Bertini. I also cannot take care of it without first reaching an understanding with you.
>
> Your message, that you had written to me in that you had resolved a singular point by repeated use of plane mappings of cubic surfaces, astonished me incredibly. I have absolutely no recollection 