| MIT grad. | 9 |
| MIT grad, prob. | 15 |
| MIT deg. holder, perh. | 22 |
| Mechanically inclined one (Abbr.) | 33 |
| Mechanical whiz: Abbr. | 22 |
| Mechanical or electrical pro | 28 |
| Mechanical one (Abbr.) | 22 |
| Mech. whiz | 10 |
| Mech. master | 12 |
| Mech. expert | 12 |
| Mech. ___ | 9 |
| Many an M.I.T. grad | 19 |
| Many a tech. sch. grad | 22 |
| Many a NASA employee: Abbr. | 27 |
| Many a Lockheed Martin employee: Abbr. | 38 |
| Many a Caltech student | 22 |
| Many a Cal Poly grad (abbr.) | 28 |
| Man from M.I.T. | 15 |
| M.T.A. employee | 15 |
| M.I.T. grad., often | 19 |
| M.I.T. grad, often: Abbr. | 25 |
| Locomotive dvr. | 15 |
| IBM hire, maybe | 15 |
| IBM employee, maybe | 19 |
| Hwy. dept. employee | 19 |
| Grad. of R.P.I. | 15 |
| GM worker | 9 |
| Georgia Tech grad, perhaps | 26 |
| Ga. Tech grad, perhaps | 22 |
| G.E. employee | 13 |
| Former Caltech sr., perhaps | 27 |
| Employee on a RR | 16 |
| Dept. in many universities | 26 |
| Dam designer: Abbr. | 19 |
| Certain MIT graduate | 20 |
| Certain MIT grad. | 17 |
| Certain Ga. Tech. grad | 22 |
| Certain Ga. Tech grad. | 22 |
| Certain Ga. Tech grad | 21 |
| Certain B.S. holder | 19 |
| Casey Jones' was one (Abbr.) | 32 |
| Career for a sci. major | 23 |
| Caltech researcher, perhaps | 27 |
| Caltech grad's occ., often | 30 |
| Caltech grad: Abbr. | 19 |
| Caltech grad, perhaps: Abbr. | 28 |
| Caltech grad, perhaps | 21 |
| Caltech grad, often: Abbr. | 26 |
| Caltech grad, maybe | 19 |
| Cal Tech grad, perhaps | 22 |
| Bridge or tunnel designer: Abbr. | 32 |
| Bridge builder, for one: Abbr. | 30 |
| Bridge builder, for one (Abbr.) | 31 |
| Boeing worker: Abbr. | 20 |
| BCE grad | 8 |
| B.&O. man | 13 |
| Art process: Abbr. | 18 |
| Army Corps tech. | 16 |
| Applied sci. professional | 25 |
| An MIT grad. | 12 |
| An MIT grad, perhaps | 20 |
| Abbr. for a MIT grad | 20 |
| A Northeastern U. grad | 22 |
| Inscribe | 8 |
| Chase | 5 |
| Etch | 4 |
| Prepare, as a fancy invitation | 30 |
| Personalize, in a way | 21 |
| Put words on a ring | 19 |
| Personalize, perhaps | 20 |
| Personalize, at the jeweler's | 33 |
| Personalize a bracelet, e.g. | 28 |
| Personalize a bracelet | 22 |
| Mark a marker? | 14 |
| Imprint on a hard surface | 25 |
| Etch deeply | 11 |
| Carve on, as a monument | 23 |
| Add a monogram to, perhaps | 26 |
| Rivet | 5 |
| Capture all of one's attention | 34 |
| Occupy the attention of | 23 |
| Absorb wholly | 13 |
| Occupies completely | 19 |
| Engages | 7 |
| Consumes all of one's attention | 35 |
| Many Rice grads: Abbr. | 22 |
| Many Caltech grads | 18 |
| Many Cal Tech grads | 19 |
| Many MIT graduates | 18 |
| Hwy. planners | 13 |
| Corps personnel: Abbr. | 22 |
| Boeing personnel: Abbr. | 23 |
| Some specialize in elec. | 24 |
| Asian trees | 11 |
| Wankel et al.: Abbr. | 20 |
| Trees of Burma | 14 |
| Some MIT grads, briefly | 23 |
| Some Caltech grads: Abbr. | 25 |
| Road designers, e.g.: Abbr. | 27 |
| Professional people: Abbr. | 26 |