Back Button

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.

Note that dates of origin are exact when known, or approximated by best estimate or give a range which is an estimate. Estimates are indicated by c. (circa) preceding the date.
Click on a picture to see more images and details, if available.
FEATURES OR MODEL DATE
OF PUBLICATION OR REFERENCE IN PUBLICATION
APPLICABLE TO MODELS IMAGES REMARKS REFERENCE
SECTOR
MODEL
c. 1873
REF: 1880
SECTOR MICROSCOPE 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 Bulloch Model D Note the 'English' or 'Crouch' type of foot, rarely if ever produced by other American Microscope makers. Private Collection
  c. 1880's (?) HISTOLOGICAL bulloch 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 Congress Microscope 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) Bulloch Biological 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 Bulloch Professional 132 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 Bulloch 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) first Bulloch Lithological Scope 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 Bulloch 158 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
201 c 1882 BIOLOGICAL NO. 2 Bulloch Biological No. 2 Microscope Note the third version of the Bulloch Mechanical stage with concentric horizontal controls projecting from the top of the stage. Also note the improved substage, designed specifically for the Biological No. 2, and noted for the first time in the Journal of the RMS, in 1884, Vol V4, part 1, sect2,page 279. The substage was later changed by Meyerowitz who added the rack and pinion offset to the iris. This is seen on other examples of the same microscope, as in serial number 211 listed below. This Collection
211 c 1882 BIOLOGICAL NO. 2 For an almost identical microscope see number 201 above. This microscope is virtually identical to number 211, except an accessory stage (not by Bulloch) has been attached to the front of a plain circular stage. There is an associated eyepiece micrometer (maker unclear), and a vertical illuminator (not by Bulloch). The substage fitting, modified by Meyerowitz is exactly the same as in number 201. Dittrick Museum of Medical History of Case-Western Reserve University(Cleveland, OH)
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 Bulloch 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 Bulloch Congress Microscope 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 Bulloch No 282 Microscope 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) bulloch 308 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) Congress microscope 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 Bulloch 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 bulloch 464 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) bulloch 675 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