When I learnt to program, there were only two languages that were worth learning, Algol 60 and assembler. ‘Programming languages’ was once an easy course to teach, but as more languages were introduced it became harder and harder, and most books for undergraduates turned from textbooks into encyclopedias, trying to cover all known languages. Somewhere along the line the idea that it was worth t...

An aqueous diluent containing Tween 60 and Arlacel 80 gave greater recovery of microorganisms when compared with two common diluents as determined by aerobic plate count of inoculated anhydrous cosmetics. The greater recovery was caused by better dispersion of the anhydrous cosmetics in the diluents.

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