Siddha Literature at the Library of Congress

Hundreds of books have been cataloged and available online at the The Library of Congress, The catalog can be accessed by everyone which is having famous books in Siddha Literature like  

An̲upōka vaittiya navanītam (அனுபோக வைத்திய நவநீதம்) by Pā. Mukammatu Aptullā Cāyapu. (பா.அப்துல்லா சாயபு)

Siddha pharmacopoeia of India.

Akastiyar 12000, en̲n̲um, Perunūl kāviyam

Citta vaittiya tiraṭṭu = Siddha pharmacopoeia, by Ka. Nā. Kuppucāmi Mutaliyār, Ka. Cu. Uttamarāyan̲.

In the name of Akattiyar itself 36 books have been cataloged! 

Most of the books published by Aruḷmiku Pal̲ani Taṇṭāyutapāṇi Cuvāmi Tirukkōyil Citta Maruttuvanūl Veḷyīṭṭukkul̲u (அருள்மிகு பழநி தண்டாயுதபாணி சுவாமி திருக்கோயில் சித்த மருத்துவ நூல் வெளியீட்டுக்குழு) are cataloged!

The catalogs also can be downloadable and it is a great work and can be used by research institutes for their library. 

Access the catalog here