| Three sch. basics | 17 |
| The basics, in a way | 20 |
| Schooldays initials | 19 |
| School-days trio | 16 |
| School threesome | 16 |
| School days' trio | 21 |
| School days initials | 20 |
| School basics, in a way | 23 |
| School basics, briefly | 22 |
| Sch. basics | 11 |
| Pupils' trio | 16 |
| Old-fashioned learning, in a way | 32 |
| Learning initials | 17 |
| Hickory-stick initials | 22 |
| Growling sound | 14 |
| Grammar school trio? | 20 |
| Grammar school education, initially? | 36 |
| Grammar school basics, for short | 32 |
| Grade-school trio | 17 |
| Grade school basics, familiarly | 31 |
| Grade sch. basics | 17 |
| Elementary school trio? | 23 |
| Elementary letters? | 19 |
| Elementary education, facetiously | 33 |
| Elementary education, briefly | 29 |
| Elem. school basics | 19 |
| Elem. curricula? | 16 |
| Education, initially? | 21 |
| Education, initially | 20 |
| Education basics, briefly | 25 |
| Comic-book siren sound | 22 |
| Chainsaw noise | 14 |
| Basics of learning, briefly | 27 |
| Basics of grade school learnin'? | 36 |
| Basics of education? | 20 |
| Basics of education | 19 |
| Basic trio at school | 20 |
| Basic learning, for short | 25 |
| Basic elementary school trio? | 29 |
| Basic education trio? | 21 |
| Attack poodle's warning | 27 |
| Academic basics, casually | 25 |
| Monopoly quartet: Abbr. | 23 |
| Four Monopoly properties (abbr.) | 32 |
| Certain carriers: Abbr. | 23 |
| They have Xings | 15 |
| Train lines: Abbr. | 18 |
| Reading and others: Abbr. | 25 |
| Monopoly foursome: Abbr. | 24 |
| B.&O. et al. | 16 |
| Four Monopoly props. | 20 |
| Carriers: Abbr. | 15 |
| B.&O., etc. | 15 |
| Monopoly quartet (abbr.) | 24 |
| Monopoly props. | 15 |
| B&O and others | 18 |
| B. & O., etc. | 17 |
| $200 Monopoly props. | 20 |
| Trains: Abbr. | 13 |
| Some Monopoly spaces: Abbr. | 27 |
| Monopoly purchases: Abbr. | 25 |
| Lines with Xings | 16 |
| Lines with crossings: Abbr. | 27 |
| Four Monopoly properties: Abbr. | 31 |
| Els, e.g. | 9 |
| B&O et al. | 14 |
| $200 Monopoly properties, briefly | 33 |
| Travelers' options: Abbr. | 29 |
| Transport cos. | 14 |
| Track runners: Abbr. | 20 |
| They have their own X-ings | 26 |
| They get their own crossings: abbr. | 35 |
| They cost $200 in Monopoly: Abbr. | 33 |
| Some are underground: Abbr. | 27 |
| Penn Sta. users | 15 |
| Penn Sta. traffic | 17 |
| Penn Central, etc.: Abbr. | 25 |
| Monopoly acquisitions: Abbr. | 28 |
| Four Monopoly properties, for short | 35 |
| B&O and Reading: Abbr. | 26 |
| B&O and Reading | 19 |
| B&O and D&RGW | 21 |
| B.&O. and others | 20 |
| B.&O. and L.I. | 18 |
| B. & O. and Reading: Abbr. | 30 |
| $200 "Monopoly" props. | 32 |
| Yards are part of them: Abbr. | 29 |
| XING sites | 10 |
| Where to see some sleepers: Abbr. | 33 |
| Where to see some diners: Abbr. | 31 |
| Where to find trainers?: Abbr. | 30 |
| Users of stas. | 14 |
| Union Sta. users | 16 |
| Union Sta. traffic | 18 |
| Union Pacific et al.: Abbr. | 27 |
| Transportation systems (abbr.) | 30 |
| Transportation cos. | 19 |
| Transport lines: Abbr. | 22 |
| Transp. systems | 15 |
| Transp. lines | 13 |