Update: Conservation at the MMO

Jascin N. Leonardo Finger • July 18, 2022

Conservation of historic buildings is a slow process. Much of it comes from trying to match the original materials so that we can make sure the conservation work is done properly, that it matches in color, and that it works with what exists. For example, painting latex paint over a lime-based paint: not a good idea. It is not historically accurate but also that latex is not going to adhere to the lime wash properly and at some point, you will have a mess that you are re-doing the right way.


In the case of the Maria Mitchell Vestal Street Observatory, the grout (cement) is very coarse. It’s full of small pebbles and broken pieces of stone (see image). The main dome was built in 1908 and the addition to the right of it was completed in 1922. When I joke that it looks like they went to the beach to make the grout mixture, I am not entirely sure it is a joke!


In any case, this is not something – the lime or this particular grout – that you buy off the shelf. The mason has to make it – match the color, the texture/coarseness, the pebble-like material and colors in it, the mixture. Thus, the amazing island mason, Wayne Morris – who has been working on this project and also did our conservation work at the MMA Research Center – has spent countless hours collecting stones and digging through stones he has in his masonry yard. Once he has a good amount and ones that match what is on the MMO, he pulverizes them to match the size of the pieces found in the existing grout on the building. He actually created a special tool to do this. Because, that’s how he works.



So, now that he has a good supply, he has been focused on the back side of the building dealing with the cracks and places that the grout has spalled and fallen out. He is now attending to the front of the building, thus more staging. Once those areas are dealt with, he will replace the iron lintels above the windows. These have rusted because of water getting in. They will be replaced with steel that will not rust, expand, and then cause cracking. He will also be addressing the “parapets” – rebuilding them where needed – and attending to the copper and the flat room on top of the 1922 addition.


JNLF

 


Recent Posts

Curator Almost Eaten By Large Lobster

By Jascin N. Leonardo Finger • November 17, 2025
Clementine has finally molted! We at the MMA have been awaiting this for quite some time so I decided to re-post an old blog about Clementine. Well, not quite. But, part of my job is to also take care of all of the MMA properties. So, I headed over to check on one and what cleaning supplies are needed for the summer and for our staff spring clean-up of the site. In one room, some of the animals from the Aquarium over-winter. One of those is “our” lobster, Clementine, so-called because she is orange in color. (Orange lobsters are five times rarer than blue lobsters and only one in ten million lobsters are orange.) She is fairly active and though the hope is that she “sleeps” a bit for the winter, she doesn’t seem to. So, enter curator into room who glances over and hopes the lobster does not “run” to the side of the tank asking to be fed. Yes, she really does that – she has gotten used to people. I always hate it because I feel guilty – I do not feed her because that falls to the Natural Science Department and I do not want to hurt her or her schedule in any way. In any case, “Whew!” She actually seemed quiet at the back of the tank. Maybe she was “sleeping.” I kept moving to the next room and glanced back. Low and behold, she was at the front of the tank waving her claws! Seriously? So I kept moving on – after telling her, “I can’t feed you,” – and she went to the back of the tank again! Another, “Whew!” I decided to text Emily, our Director of Natural Science (at that time), and relay what happened. I get a text back. “You can feed her if you want.” “Really?” I texted back. “What do I give her?” So, Clementine then ran back to the front of the tank when she saw me opening the freezer and taking out the mussels and a shrimp. I got another text from Emily: “Use the forceps to hand them to her.” Well, I wasn’t about to put my hand in there! So, I get the shrimp, put it in the forceps, open the top of the tank and start to put my hand down, and INSTANTLY two HUGE lobster claws come out of the tank and grab not the shrimp but the forceps! I wish I had a picture. I was afraid she was going to take the forceps. And then, I was afraid my hand was going to be her lunch. I could not get her to release the forceps – it was a battle royale though the battle was more on her part because I was afraid I would break her claw! After some twisting of the forceps and tugging, she finally relented, took the shrimp, and began her lunch. Another, “Whew!” I was afraid I was either going to hurt her or I was going to be explaining to my three-year old what happened to Mommy’s hand at work. Veuve Clicquot with that, Clementine? Apparently, someone else knew what transpired with the lobster. As I left the building, a male mallard duck was paddling around in the rather large puddle – if you can call it that – located on the property. We have recently had a large amount of rain. He was laughing (I mean quacking) at me. In all seriousness, I have never met a lobster with so much personality. Yes, personality. Clementine may just have changed my tune on lobster rolls. JNLF

Miss Herschel

By Jascin N. Leonardo Finger • November 10, 2025
A re-blog from years past. The item you see here is a small piece of what once was. Upon her visit to Europe as a young woman’s chaperone in 1857 –1858, Maria Mitchell visited many of the major observatories of Europe and met many of the movers and shakers in the scientific, art, and literary worlds of the continent. While Caroline Herschel (1750 – 1848) and her brother, Sir William (1738 – 1822), were long dead, Maria was able to meet Caroline’s nephew (William’s son), Sir John Herschel (1792 – 1871). All three were astronomers, though Caroline found herself having to give credit – or have her brother accept credit – for much of her work because she was a woman. She has often been credited with the being the first woman to discover a comet. She was likely not – and the other woman who was the first lost credit through history as she had to “give” her comet discovery to her husband. See a pattern? Caroline was just one of many women in a long line of, “She couldn’t possibly do that – she is a woman!” As Maria once said, “But a woman, what more could you ask to be?” But back to this small item. It was a page from one of Caroline Herschel’s notebook’s, torn from its home by John Herschel to serve a s a memento for Maria of her visit to the family’s home. Maria was a bit shocked but . . . she took it! Over the years, the paper tore and ripped and just crumbled away until Maria finally decided that to save it, she needed to past it into one of her own journals. And thus, we have what we have. I assume Caroline’s notations refer to her brother William – “Wol” and Woll.” It could be an “I” but it really looks like an “O.” She is considered the world’s first professional woman astronomer – she would be compensated for her work after some time – and she warrants a greater look at – too much for a blog. So I encourage you to go take a look at her. Maria would want you to! JNLF

From The Rear

By Jascin N. Leonardo Finger • November 3, 2025
I am not so sure our founders would love that title but the image is of the Maria Mitchell Vestal Street Observatory (MMO) “from the rear.” I love this image as it is really the only one we have – unless you count the one that is taken from farther away and from further into the backyard of the Mitchell House. That one allows you to see the natural slope of the Mitchell House back lawn which would be altered when they added the Curator’s Cottage. Both of the images were taken before the Curator’s Cottage was added at the back of the Mitchell House in the early 1930s – and this one you see here was taken before 1922 when they added the Astronomical Study onto the MMO. It also shows the original dome – which was copper – before it was replaced in 1951 – which is the current dome. The copper did not hold up to our climate here – salt spray, damp, fog. But the new one, shipped over from England, has held up well. The current dome was donated by Margaret Underwood Davis (MMA board president at the time), in memory of her son, Cushing Davis who was an amateur astronomer. Margaret Davis served as president from 1930-1946 and again from 1949-1953. The image tells you some other things too. For instance, the grape arbor behind the Mitchell House is supposed to be Peleg Mitchell’s (Maria’s uncle) grape vine – I have blogged about it several times before – and you can see it in this image. You can also see how the Milk Room connects to the 1850s kitchen. The 1850s kitchen was added by Peleg Mitchell Jr and it’s the first little wart you see with the white pipe attached. The next wart is the Milk Room – also added by Peleg – it’s the one with the shutters on the window. Both still exist it’s just the Curator’s Cottage was attached in the 1930s. You will see another chimney too. It appears alongside the white pipe. That is likely the original chimney to what is now the Astronomer’s Cottage at the MMA. We acquired the Cottage in the 1920s but I believe all of the additions, and the removal of the chimney, were done before we were given it.  Fun! JNLF
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