An error occurred while setting your user cookie. Din Condensed Font Mac there. Please set your. browser to accept cookies to continue. NEJM. org uses cookies to improve performance by remembering your. ID when you navigate from page to page. This cookie stores just a. ID no other information is captured. Accepting the NEJM cookie is. S O Pillai Solid State Physics IntroductionThe coloured rain of Kerala began falling on 25 July 2001, in the districts of Kottayam and Idukki in the southern part of the state. Yellow, green, and black rain. BibMe Free Bibliography Citation Maker MLA, APA, Chicago, Harvard.