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| Across: |  | 3. | I have to learn 17 ... by heart by tomorrow! (formula) |  | 4. | The ... are still being analyzed. (datum) |  | 7. | Memos or ... are messages or other information in writing sent by one person or department to another in the same business organization. (memorandum) |  | 9. | The list of ... in this book is rather long. (erratum) |  | 11. | The ... are to blame for starting the rumours. (medium) |  | 12. | He has faced lots of ... in his life. (crisis) |  | 
| Down: |  | 1. | I believe that these natural ... are the most fascinating of all. (phenomenon) |  | 2. | The Health Service should not be judged by financial ... alone. (criterion) |  | 5. | How many Missing Persons ... are there in this city? (bureau) |  | 6. | You will go past several ... on your way there. (oasis) |  | 8. | Where are the ... in f(x,y)=sin(x)sin(y)? (minimum) |  | 10. | Please, calculate the ... of these two circles. (radius) |  |