| #251 | Science reports of the Tohoku University, Ser. 1. Physics, chemistry, astronomy. -- Sendai : Tohoku University.Faculty of Science: Tohoku University. Graduate School of Science, 1949-. -- ISSN 0040-8778 |
| #252 | Scientia sinica. -- Peking : Science press Guozi shudian, 1954-1991. -- ISSN 0250-7870 |
| #253 | Separation science and technology. -- New York : Dekker, 1966-. -- ISSN 0149-6395 print. -- ISSN 1520-5754 online |
| #254 | Soft matter. -- Cambridge : Royal Society of Chemistry, 2005-. -- ISSN 1744-683X print. -- ISSN 1744-6848 online |
| #255 | Steroids. -- Stoneham : Elsevier, 1963-. -- ISSN 0039-128X print. -- ISSN 1878-5867 online |
| #256 | Synfacts. -- Stuttgart : Thieme, 2005-. -- ISSN 1861-1958 print. -- ISSN 1861-194X online |
| #257 | Synthetic communications. -- : Dekker, 1971-. -- ISSN 0039-7911 print. -- ISSN 1532-2432 online |
| #258 | Tetrahedron : The international journal of organic chemistry. -- London : Pergamon Press, 1957-. -- ISSN 0040-4020 print. -- ISSN 1464-5416 online |
| #259 | Tetrahedron: asymmetry. -- Oxford : Elsevier, 1990-. -- ISSN 0957-4166 print. -- ISSN 1362-511X online |
| #260 | Tetrahedron letters. -- Oxford : Elsevier, 1959-. -- ISSN 0040-4039 print. -- ISSN 1873-3581 online |