MICROSCOPE-ANTIQUES.COM © 2013-15.
This page is a preliminary listing of various changes in the
features of microscopes by Walter H. Bulloch. This will
include
both terminology and actual changes in the stand. Only major
features or terminology will be included here. For
a
review of stand types, please see the Bulloch Microscope
Evolution Page.
CONTACT INFORMATION: Email: contact me at collector@microscope-antiques.com.
N/A means not applicable.
| FEATURES OR MODEL | DATE OF PUBLICATION OR REFERENCE IN PUBLICATION |
APPLICABLE TO MODELS | IMAGES | REMARKS | REFERENCE |
|---|---|---|---|---|---|
|
SECTOR MODEL |
c. 1870 REF: This collection |
LISTER LIMB COMPOUND BINOCULAR | 
|
As of January, 2022, this is the lowest known serial number for a signed Bulloch Microscope. Its construction bears a clear resemblance to Pike microscopes of the same era. It uses a fusee chain drive for the Y-axis of the mechanical stage, and Bulloch still used this in some of his stages as late as 1878. | This collection |
|
SECTOR MODEL |
c. 1873 REF: 1880 |
SECTOR MICROSCOPE | 
|
No surviving example of this stand is known to the author. | Reported in the JRMS of 1880 to have first been 'exhibited' in 1873. |
| 103 | c. 1878 | STAND D | 
|
Note the 'English' or 'Crouch' type of foot, rarely if ever produced by other American Microscope makers. | Private Collection |
| c. 1880's (?) | HISTOLOGICAL | 
|
Note the single swinging tailpiece which carries both the condenser assembly and the mirror, and the assymetrical flat tripod foot. | Private Collection | |
| 115 | c 1880's ? | CONGRESS | 
|
Note the new form of glide stage with two supporting points instead of one. | Private Collection |
| 117 | c. 1880's | HISTOLOGICAL | N/A | Note that this microscope has a single swinging tailpiece which carries both the condenser assembly and the mirror, and the assymetrical flat tripod foot. The foot was signed 'Bulloch's Patent, E.B. Meyrowitz Maker, New York, Pat'D 1879'. This example had a glass-covered glide stage, with single pressure point, and with the slide holder missing. | Private Collection; sold at Christies auction in Los Angeles in October of 2001. |
| 121 | c 1880 | NEW BIOLOGICAL (LATER CALLED THE BIOLOGICAL NO. 1) | 
|
Note the second version of the Bulloch Mechanical stage with concentric horizontal controls projecting from the top of the stage. This model could be supplied with a 'Clip Stage', Mechanical Stage, or 'Sliding Object Carrier' Stage; it could also be supplied with Gillet diaphragm, Graduations to the substage and mirror bar, and even as a Binocular model for extra cost. | Private Collection |
| 132 | c 1880 | PROFESSIONAL | 
|
Note the first version of the Bulloch Mechanical stage with concentric horizontal controls projecting from the bottom of the stage. By number 138 this had changed (see below). | This Collection |
| 138 | c 1880 | PROFESSIONAL | 
|
Note the second version of the Bulloch Mechanical stage with concentric horizontal controls projecting from the top of the stage. | This Collection |
| 139 | c 1880 | LITHOLOGICAL (first form) | 
|
According to a review article published in the 'American Geologist' in 1889, this was the first purpose-made Petrological microscope made in the U.S.A. produced in 1880. It is nearly identical to number 138 except for the nosepiece and other fittings to allow petrographic work. | This microscope now resides in the Brooks Collection. |
| 144 | c 1880 | NEW BIOLOGICAL OR BIOLOGICAL NO 1. | N/A | This is a New Biological model, with horizontally oriented mechanical stage. There is no round plate under the asymmetrical foot. The two tailpieces are zig-zag in shape. The condenser fitting is manually moved up or down. | This microscope sold on Ebay in 2004. |
| 158 | c 1880 | CONGRESS | 
|
Note the third version of the Bulloch Mechanical stage with concentric vertical controls projecting upward from the top of the stage, allowing full stage rotation. | The Billings Collection |
| 177 | c 1880 | PROFESSIONAL (2 PILLAR) | N/A | This microscope had two Z-shaped tailpieces, and the second version of mechanical stage. The equiaxed foot had a circular plate but without calibrations. This is a binocular scope. | Private Collection |
| 186 | c 1880 | NEW BIOLOGICAL (LATER CALLED THE BIOLOGICAL NO 1.) | click here | This microscope had two Z-shaped tailpieces, and the glide stage with a single pressure point, although the stage glass and slide holder are missing. The equiaxed foot had no circular plate at the place where the pillar meets the foot. This microscope has the signature of 'Pat'd 1879, W.H. Bulloch, Chicago, Ill' on the top surface of the foot, but the serial number of 186 is stamped on the underside of foot. This model could be supplied with a 'Clip Stage', Mechanical Stage, or 'Sliding Object Carrier' Stage; it could also be supplied with Gillet diaphragm, Graduations to the substage and mirror bar, and even as a Binocular model for extra cost. | ars machina.com collection (Collection of Tom Grill) |
| 200 | c 1882 | BIOLOGICAL NO. 2 | N/A | This microscope lacks the round plate under the pillar and has the older asymmetrical foot. It does have the newer straight rectangular double swinging tailpieces, but not the improved condenser assembly seen starting with serial number 201; this example has the older simple substage condenser assembly, but still focused by rack and pinion. | This Collection |
| 248 | c 1882 | ? HISTOLOGICAL OR BIOLOGICAL NO. 2 | N/A | This microscope is very incomplete, lacking part of substage and the stage. It is difficult from the illustration in the auction catalog to tell if it is a Histological or Biological model. | Formerly part of the Elli Buk collection and sold at auction in July 1997 |
| 251 | c 1883 | CONGRESS | 
|
Note the THIRD version of the Bulloch Mechanical stage with concentric vertically projecting concentric controls, allowing full rotation of the stage. | Golub Collection, U.C. Berkeley |
| 260 | c 1883 | PROFESIONAL (2-PILLAR) | click here | This restored Bulloch professional features dual pillars and the second version of mechanical stage with horizontal concentric controls. | Wisner Collection |
| 262 | c 1882 | CONGRESS |
|
Note the THIRD version of the Bulloch Mechanical stage with concentric vertically projecting concentric controls, allowing full rotation of the stage. | Private Collection, (formerly this collection) |
| 268 | c 1882 | PROFESSIONAL NO. 2 (with longer tube length) | N/A | This microscope has the longer tube length identifying it as a Professional No. 2., rather than a Biological No. 2. It had a glass surfaced glide stage with sliding carrier. The signature on top of the foot includes the Patent date of 1879 in larger block letters than the signature of W.H. Bulloch Chicago. Also we note the serial number on the bottom of the foot in this microscope. | Sold on Ebay 2008. |
| 282 | c 1882 | BIOLOGICAL NO. 2 |
 |
Note the SECOND version of the Bulloch Mechanical stage with concentric horizontally projecting concentric controls, limiting the rotation of the stage. This microscope has been referred to by some as a Professional No. 2, but this is actually incorrect. The only difference between the Professional No. 2 and the Biological No. 2, is the length of the limb where it meets the optical tube and the length of that tube. They are otherwise identical. The Biological No. 2 had a tube length of 5-6 inches, whereas the professional had a tube length of 8-8.5 inches (excluding draw tube). | Private Collection |
| 301 | c 1890 | PROFESSIONAL (2 PILLAR) | N/A | This microscope had the later straight tailpieces, and the third version of mechanical stage. The equiaxed foot had a circular plate but with calibrations. This is a monocular scope. | Private Collection |
| 308 | c 1890 | PROFESSIONAL NO.2 (1 PILLAR) | 
|
This microscope had the later straight tailpieces, and the rotating glide stage. The equiaxed foot had a circular plate but without calibrations. It had the newer improved substage condenser assembly that swings out of the optical axis, and was first developed for the Biological No.2 about 1884. This is a monocular scope. | Billings Collection |
| 328 | c. 1890 | CONGRESS (FINAL FORM) | 
|
Note that the tailpieces are both flat and straight. Also note the recently added rack and pinion adjustment to the mirror. | This microscope currently resides in the Brooks Collection |
| 383 | c. 1885 | PROFESSIONAL PETROLOGICAL | N/A | This model is identical to the Professional (dual pillar) model of the same time period except for the more complicated nosepiece, stage mechanics, and substage. It has the later version of straight rectangular tailpieces. The mirror is manually adjustable. | Unknown |
| 392 | c. 1890 | BIOLOGICAL NO. 2 WITH GLIDE STAGE | N/A | Note that the tailpieces are both flat and straight. This microscope, a monocular is equipped with a glide stage attachment, but with only a single pressure point. The new form of substage condenser fitting was provided. The foot is assymetrical on this example and in addition, both the patent date of 1879, and the serial number are stamped on the bottom of the foot. | Private Collection |
| 406 | c. 18__ | NEW STUDENT | 
|
Note that there is only one rectangular-shaped swinging tailpiece both flat and straight. Also note that the signature is on the top of the stage, and serial number is on the underside of the stage. | This microscope was sold on Ebay, and the seller was kind enough to allow me to use his images here on my website. |
| 464 | c. 1890 | PROFESSIONAL NO. 2 | 
|
Note the longer optical tube typical than the Biological No. 2. | This microscope was offered for sale by Saul Moskowitz of Historical Technology in 1979. |
| 512 | c. 18__ | BIOLOGICAL | N/A | This microscope bears both the Meyrowitz and Bulloch signatures | Private collection |
| 675 | c. 1891 | CONGRESS (FINAL FORM) | 
|
Note that the tailpieces are both flat and straight. Also note the recently added rack and pinion adjustment to the mirror. | This microscope was formerly part of the Elli Buk collection, and sold at auction on his death |